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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

For the fiscal year ended December 31, 2000

Commission file number 0-22250

3D SYSTEMS CORPORATION
(Exact name of Registrant as specified in its charter)

26081 Avenue Hall
Valencia, California 91355
(Address of principal executive offices and zip code)

(661) 295-5600
(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:
None

Securities registered pursuant to Section 12(g) of the Act:
Common Stock, $.001 par value

Preferred Stock Purchase Rights

    Indicate by check mark whether the Registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding twelve months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes /x/  No / /

    Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of Registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this 10-K or any Amendment to this Form 10-K. [ ]

    At February 28, 2001, there were outstanding 12,303,197 shares of the Common Stock of Registrant, and the aggregate market value of the shares held on that date by non-affiliates of Registrant, based on the closing price ($12.625 per share) of the Registrant's Common Stock on the Nasdaq National Market on that date, was $98,254,126. For purposes of this computation, it has been assumed that the shares beneficially held by directors and officers of Registrant were "held by affiliates;" this assumption is not to be deemed to be an admission by such persons that they are affiliates of Registrant.

DOCUMENTS INCORPORATED BY REFERENCE

    Portions of Registrant's Proxy Statement with respect to its 2000 Annual Meeting of Shareholders, currently scheduled to be held May 9, 2001, are incorporated by reference into Part III of this Report.

    Exhibit index is located on page 31.

3D SYSTEMS CORPORATION

Annual Report on Form 10-K for the
Year Ended December 31, 2000

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PART I

Item 1. Business

    For a discussion of certain material factors which may affect the Company, see "Cautionary Statements and Risk Factors" commencing on page 9 of this Report.

General

    3D Systems Corporation (the "Company," "We," or "Us") develops and manufactures solid imaging systems that it markets to a worldwide customer base. Solid imaging systems are designed to rapidly produce three-dimensional physical objects from digital data using computer aided design and manufacturing ("CAD/CAM") software utilities and related computer applications. Our hardware products include SLA® industrial systems and ThermoJet® solid object printers. We market and distribute consumable materials used in these systems, and, in the case of the ThermoJet printers, we also produce the materials. Our growing installed base of systems requires an ongoing supply of materials as well as service support. ThermoJet printers use proprietary materials developed, manufactured and sold exclusively by us. For SLA systems, we are the exclusive worldwide distributor (except for Japan) of Vantico International S.A.'s ("Vantico") stereolithography photopolymer liquid resins ("resins"), which we develop in conjunction with Vantico. Unless otherwise indicated, all references to "Vantico" include Vantico Holding S.A. and its affiliates, including Vantico Group S.A. and Vantico International S.A. Vantico acquired the assets of the Performance Polymer Division of Ciba Specialty Chemicals, Inc. ("CSC"), with which we formerly had the same distributor and development relationship with respect to resins.

    SLA industrial systems use our proprietary stereolithography ("SL") technology, a solid imaging process that uses a laser beam to expose and solidify successive layers of a photosensitive liquid until the desired object is formed to precise specifications in epoxy or acrylic resin. SL-produced parts can be used for concept models, engineering prototypes, patterns and masters for molds, consumable tooling or short-run manufacturing of final product, among other applications. SL technology can provide users with significant product development time-savings, cost reductions and improved quality, compared to traditional modeling, tooling and pattern-making techniques. In addition, with appropriate material functionality, SL technology can produce durable parts which can be used for rapid manufacturing.

    ThermoJet solid object printers, which are about the size of office copiers and are designed for operation in engineering and design office environments, employ hot-melt ink jet technology to build 3-dimensional models in successive layers using our proprietary thermoplastic materials ("3D printing"). Designers, engineers, and other users of CAD/CAM utilities can incorporate our printers into office networks as a shared resource, to rapidly produce models of products under development for design concept communication and validation. In addition, objects produced by 3D printing can be used as patterns and molds and, when combined with other secondary processes, such as investment casting, can produce parts with representative end-use properties.

    We provide, either directly or through our network of authorized distributors, a variety of processing materials and on-site maintenance services for both SLA systems and ThermoJet printers.

    We market directly and through secondary distribution channels to customers in the United States, Europe and Asia, and through distributors and sales agents in other countries. Our customers include major corporations throughout the world in a broad range of industries including manufacturers of automotive, aerospace, computer, electronic, consumer and medical products. We also sell SLA systems and ThermoJet printers to government agencies, universities and to independent service bureaus that, for a fee, provide SL and 3D printing services to their customers.

    As of December 31, 2000, we held 232 patents related to solid imaging: 114 United States; 64 European; 12 Japanese; and 42 other foreign patents. We continue to develop new products and

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processes to expand the applications of solid imaging, and to develop improvements to our existing product lines. In conjunction with Vantico, we continue to develop materials for our SLA systems with different and improved characteristics to expand SL applications. Vantico is a Luxembourg-based multinational manufacturer and distributor of specialty chemicals, and is a 14% beneficial shareholder of the Company at February 28, 2001, as well as a distributor of our SLA products in Japan.

    Solid imaging is a relatively new field embodying the use of computers and computer automated equipment to rapidly produce prototypes, models and even low-volume production quantities of physical objects that traditionally have been produced by machining and other methods. We believe that stereolithography and solid imaging hot melt ink jet ("multi-jet modeling" or "MJM") technologies, which we have developed and patented, represent the most significant developments in this field. While alternative technologies exist and significant research and development efforts are currently being undertaken by corporations and universities around the world in an attempt to develop additional alternative technologies and techniques, we remain the leader in the solid imaging field on the basis of total revenue and systems installed.

Corporate Structure

    The Company is a Delaware corporation, and is the sole shareholder of 3D Canada Company, a Nova Scotia unlimited liability company ("3D Canada") (formerly 3D Systems (Canada) Inc., a British Columbia corporation). The Company and 3D Canada jointly own 3D Holdings LLC, which is the sole shareholder of 3D Systems, Inc., a California corporation ("3D California"), which directly and through its direct and indirect subsidiaries conducts substantially all of the Company's business. 3D California's direct subsidiaries include 3D Systems Europe Ltd., a United Kingdom company, which serves as the headquarters for the Company's European operations.

    Unless otherwise indicated, all references in this document to the Company, we, or us include 3D Systems Corporation, 3-D Systems Inc., its British Columbia predecessor ("3-D Canada"), 3D Canada and its predecessor, 3D Systems (Canada), Inc. and 3D Systems, Inc. and its subsidiaries.

Products and Services

    For an analysis of revenues attributable to our product and service groups, see "Item 7. Management's Discussion and Analysis of Results of Operations and Financial Condition—Results of Operations" beginning on page 22 of this report.

    SLA Systems and Related Equipment.  As of December 31, 2000, our SLA product line included five SLA industrial systems: the SLA 250 Series 50; the SLA 250/50 HR ("High Resolution"); the SLA 3500; the SLA 5000; and the SLA 7000. All models use SL technology. The models vary in their capabilities including the resolution and accuracy of part building, the maximum size of objects that can be produced, object building speed, and system price. Beginning March 5, 2001, as more fully described below under Recent Product Introductions, we added a new SLA system, the Viper si2™.

    SLA systems use an ultraviolet laser to convert liquid photosensitive polymers into solid cross-sections, layer by layer, until the desired 3-dimensional objects are complete. SLA systems are capable of making multiple objects at the same time; however, each SLA system is limited in the size of the objects that it can make during a single build session. Therefore, the system can make only scale models of very large objects or, alternatively, full-scale portions of large objects which are then joined together. The SLA 250 system, for example, can create a model, section of a model or other object with maximum size of 10 inches × 10 inches × 10 inches (250 mm × 250 mm × 250 mm). On the other hand, the maximum size model, section of a model or other object that can be created using the SLA 7000 system is 20 inches × 20 inches × 24 inches (500 mm × 500 mm × 600 mm).

    SLA systems are installed in many of the largest manufacturing organizations in the world and are used in a wide variety of applications, varying from short production runs of end-use products to producing automobile prototype parts to creating new designs for testing in consumer focus groups.

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SLA systems are generally designed to build communication models to enable users to share ideas and evaluate concepts; perform form, fit and function testing on working prototypes; build master patterns for investment casting; or quickly produce parts for direct use in working prototypes. In addition, our products have been customized to produce thousands of tools and end-use parts in specialized industry situations ("niche customization"), including certain medical device/dental applications. As we work to improve process and material functionality, we anticipate increasing our sales into niche customization applications. This is a forward-looking statement, however, and, as with any such statement, is subject to risk. For instance, we may not experience commercial acceptance of such applications, development or operational issues may arise, and our technologies and products may not be suitable for all customization applications.

    We also market ultraviolet curing devices ("PCAs") used in conjunction with SLA systems. The PCA provides uniform long wave ultraviolet illumination. When an SLA system has completed a typical object, a small amount of the resin has not been fully "cured" or hardened. Full curing requires an additional one to two hours of exposure to ultraviolet illumination, which can be accomplished most effectively through the use of our PCAs. Approximately 64% of all SLA systems sold by us have been purchased with a PCA.

    Solid object printers.  The ThermoJet printer is a network-ready system, about the size of an office copier, that uses a hot melt ink jet technology to print models by accumulating material in successive layers using proprietary thermoplastic solid imaging materials ("SIM") and a print head with hundreds of jets oriented in a linear array. The print head scans back and forth, similar to desktop ink jet printers, depositing layer upon layer of material to form the physical model. The printers offer a part-building capacity of 10 inches × 7.8 inches × 8 inches (250 mm × 195 mm × 200 mm).

    The ThermoJet printer creates concept models used for design reviews, form and fit checking, styling, ergonomics evaluation and CAD-model verification. 3D printing provides a communication tool that is more easily understood by both technical and non-technical people than complex two-dimensional presentation drawings. Because SIM is substantially similar to investment casting waxes, ThermoJet printer models can be readily used in the foundry environment for the production of investment casting patterns.

    Materials.  We develop and manufacture the SIM used by the ThermoJet printer. Currently we market four types of SIM, in several shades. We anticipate, based upon our research and development efforts, that we will market additional SIM types with differing material properties. We are the exclusive worldwide distributor (other than Japan), to users of SL systems, of Vantico photosensitive liquid resins for stereolithography (see "Marketing and Customers—Photopolymer Distribution Agreement" see page 9). Currently, we market a total of 15 different resins, which vary in building speed, accuracy, surface finish and mechanical properties. Depending upon results obtained under our Photopolymer Research Agreement (described under "Research and Development," on page 7), we anticipate that we will market additional types of resins with varying properties. Most of our customers purchase materials from us at the time of initial purchase of equipment (SLA system or ThermoJet printer). We also sell materials necessary for ongoing operation of the machines. For the years ended December 31, 2000, 1999 and 1998, revenues from materials sales were $25.3 million, $18.6 million and $15.6 million, respectively. Approximately three-quarters of our materials revenue is from ongoing operation of the machines.

    Software.  We develop part preparation software for personal computers and engineering workstations that is designed to enhance the interface between CAD/CAM utilities and our solid imaging products. Solid CAD/CAM data is converted to the STL format within the CAD/CAM utility; then, depending on the specific software package, the object can be viewed, rotated, scaled, and model structures added. The software then generates the information that will be used by the SLA system or ThermoJet printer for creation of the solid images.

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    QuickCast™ Technology.  Our QuickCast build style consists of a special process for making precision investment casting patterns using SL technology. Investment casting is a process whereby a foundry uses wax patterns to generate molds into which liquid metal is poured to form the part. Each wax pattern can be used only once to produce a mold. Similarly, the QuickCast process uses our SLA systems to produce foundry-useable mold patterns suitable for limited-run investment casting. While not cost-competitive for high-capacity manufacturing, the ability to rapidly produce prototypes and short-run production quantities of fully functional complex metal parts, in a wide variety of metals, is a major technological advantage of SL. All of the SLA systems we sell include the software capability to use the QuickCast process.

    Maintenance.  All of the SLA systems we sell include on-site hardware and software maintenance service, during a warranty period (typically one year) at no additional charge. All ThermoJet printers include at least a 90-day warranty period at no additional charge. After the warranty period, we offer customers optional maintenance contracts, which are available on a monthly and annual basis. Approximately three-quarters of the services we provide are for post-warranty maintenance contracts. Although purchasers are not required to enter into maintenance contracts with us, a majority of our United States, Asia Pacific and European SLA system customers are parties to these contracts, and many others obtain our maintenance services on a time and materials basis. Customers acquiring systems from some of our overseas distributors are offered maintenance contracts by the distributors. For the years ended December 31, 2000, 1999 and 1998, revenues from maintenance contracts and maintenance services were approximately $26.1 million, $26.7 million and $28.1 million, respectively. As of December 31, 2000, we had a staff of 122 full-time employees who provide on-site remedial and preventive maintenance services necessary to keep the equipment in good operating condition. To date, warranty expenses and product returns have not been significant.

    3D Systems Technology Centers.  The Company provides services from its Technology Centers at its Valencia, California headquarters and at its office located near Frankfurt, Germany. The 3D Systems Technology Centers utilize SLA systems together with CAD/CAM and other data supplied by customers to produce models, prototypes, mold patterns and other parts on a contract basis. The price for services offered by the Technology Centers varies on the basis of the nature of the services requested. The Technology Centers also focus their efforts on the development of new applications and techniques in SL and the development of new markets in which the advantages of SL can be demonstrated. The Technology Centers also enable us to keep abreast of developments in the applications of rapid prototyping and serve as a means to introduce prospective buyers to our technology.

    3D Keltool® Process.  The 3D Keltool process uses master patterns to produce highly accurate steel tool core and cavity inserts for use in plastic injection molding machines. In 1998, we began licensing this technology to our customers for their direct use.

    Recent Product Introductions.  In order to improve and expand the capabilities of our systems and related software and materials, as well as to enhance our portfolio of proprietary intellectual properties, we have historically devoted a significant portion of our resources to research and development activities. Recent product introductions include:

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3D Lightyear™ 1.1   part preparation software was released in the first quarter of 2000. A major feature of the release was the introduction of Finepoint™ supports, which enables a new method of supporting SL parts, resulting in better part surface finish and better part building yield. 3D Lightyear 1.1 software exploits the power of the Windows NT operating system. The accompanying release of control software, Buildstation 5.1, for the SLA 350/3500/500/5000/7000 systems also incorporates new functions for customers who own these large-frame SLA machines.

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SL 5430   material for the SLA 500 system was released in January 2000. It combines excellent productivity and clarity, with high temperature resistance—up to 250° C/482° F.

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•

SL 7540   material was released in March 2000 for all three solid-state platforms (the SLA 3500/5000/7000 systems). It has superior material properties, offering exceptional durability and surface quality and, in many cases, provides material properties suitable for functional testing of thermoplastic designs. This material was released in conjunction with the new versions of our Lightyear and Buildstation software (1.1 and 5.1, respectively, discussed above). In combination, the software and material are an important step ahead in part building and part versatility.

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TJ 2000   material for the ThermoJet printer was released in June 2000. It is stronger than its predecessors and creates models that are more robust than any prior SIM produced by 3D Systems.

•

SL 7520   material was released in June 2000 for the SLA 7000 system. Its higher initial green strength provides greater part-building yield for certain applications and part geometries. It provides faster throughput for QuickCast build style part building and has replaced other materials where fast production is vital.

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SL 5240   material for the SLA 250 system was released in the fourth quarter of 2000 and is comparable to SL 7540 material. It was formulated for the laser wavelength of the SLA 250 system. Like SL 7540 material, it offers exceptional durability and surface quality and, in many cases, provides material properties suitable for functional testing of thermoplastic designs.

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Viper si2 SLA system   was announced in March 2001. This system combines the versatility of the high-end SLA systems with the affordability of our entry-level industrial systems. The Viper si2 system is our first system to offer standard and high-resolution build modes in one package. The new machine builds parts as large as 10 inches × 10 inches × 10 inches (250 mm × 250 mm × 250 mm) and runs on a Windows NT-based operating system with Buildstation software enabling maximum ease of use.

Research and Development

    Our ability to compete successfully depends, among other things, on our ability to design and develop new machines, materials and applications, and to refine existing products. For the foreseeable future, we anticipate that our research and development efforts will be focused on system design and material functionality improvements for 3D printers and SL systems, and developing software to facilitate the interface between our solid imaging systems and CAD/CAM programs. Research and development expenses decreased in 2000 to $7.8 million from $8.9 million in 1999. The decrease in research and development expenses in 2000 was primarily a result of more focused engineering efforts on specific development projects and the introduction of new products in early 1999. Based on our historical expenditures related to research and development and our current development goals, we anticipate, for the foreseeable future, research and development expenses will be equal to approximately 8% of sales. This is a forward-looking statement, however, and, as with any such statement, is subject to risk. For example, if our total sales for any particular period do not meet our anticipated sales for that period, research and development expenses as a percentage of sales may exceed 8%. As of December 31, 2000, 47 employees or contractors were devoting substantially all of their time to research and development activities, compared to 50 employees at December 31, 1999.

    We believe that further refinements in stereolithography will depend upon improvements not only in our SL products, but also in the chemical makeup and types of materials available to customers. To this end, we have dedicated a significant amount of time to the development of new materials. We are a party to a Research and Development Agreement with Vantico (the "Photopolymer Research Agreement") providing for the development of liquid photopolymers, photopolymerizable monomers, photoinitiators and other resins for use with our SLA systems. Subject to certain conditions, the Photopolymer Research Agreement will remain in effect until either party gives the other six months notice of intent to terminate the agreement. Pursuant to the Photopolymer Research Agreement, the two companies work jointly, with each company funding its own portion of the research. Ownership of

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any inventions or know-how, whether patented or not, will accrue to Vantico if they are chemical in nature, and to us if they relate to the stereolithographic process. If the Photopolymer Research Agreement is not continued in its current form, we may be unable to develop, or be delayed in the development of, improvements in the chemical makeup and functionality of the resins used in the SL fabrication process, which could result in a material adverse effect on our revenues, results of operations, liquidity and financial position.

    In February 2001 we acquired the stock and intellectual property of OptoForm SARL, a start-up company that has developed SL machines that are capable of using non-liquid materials. To meet the requirements of a broad number and type of rapid manufacturing and niche customization applications, significant advancements in materials will be required. We anticipate that these materials will have different properties than our current products, including, for example, much higher viscosity. The purchase of OptoForm SARL provided us with independently-developed hardware, processing techniques, and materials which enhance our ability to offer complete solutions for short-to-medium run direct manufacturing and rapid tooling applications.

    We believe that further refinements in solid object printing will come as a result of investment in the areas of material development, solid imaging processes and the printing mechanism. We believe synthetic specialty chemicals will allow future SIM formulations to demonstrate significant improvement in the material durability and other mechanical properties, and that investment in the solid imaging build processes will result in improvements in the quality of the model output from the build process. We believe these improvements will include faster model build times, higher resolution and smaller layer steps, more accurate geometry representation and smoother and more uniform surface finish on all surfaces of the finished model. Investment in the printer system design and mechanism is expected to result in substantial cost savings, an increase in reliability, portability and improvements in ease of use. In 2000, we continued our research into new MJM materials, devoting a large portion of the year to the development of improved materials directed at addressing the top customer-identified requirements, including part durability, down-facing surface quality and post-processing effort. By combining our knowledge of both MJM and SLA material technology, we anticipate that, when commercialized, the new materials will more appropriately meet the needs of the expanding design communication market.

    The foregoing discussion relating to our research and development activities includes statements that involve risks and uncertainties. For a discussion of the factors associated with these forward-looking statements which could cause actual results to differ materially from those projected in the statements, see "Cautionary Statements and Risk Factors—We Must Keep Pace with Technological Change and Introduce New Products to Remain Competitive" and "Our New Products May Not Be Commercially Accepted" on pages 13 and 14.

Marketing and Customers

    Our sales and marketing strategy focuses on an internal sales organization, which is responsible for overseeing worldwide sales and value-added resellers, as well as the utilization of knowledgeable international distributors. We employ a direct sales force consisting of sales persons and application specialists that provide technical sales support. At December 31, 2000, our worldwide sales and support staff consisted of 85 employees that are primarily located in the United States and Europe. We have sales offices in the United States in California and Michigan; our European offices are located near Frankfurt, London, Paris, Barcelona and Milan, and our Hong Kong office serves the Asia Pacific region.

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    International Sales.  International sales, the majority of which are in Europe and Asia, accounted for 46.1%, 47.5% and 44.1% of total sales in the years ended December 31, 2000, 1999 and 1998, respectively. (See "Note 16 of Notes to Consolidated Financial Statements.") Platform sales to automotive and Formula One customers remain high, but sales to the consumer electronics industry also showed a large percentage of growth year over year. For a discussion of risks associated with international operations, see "Cautionary Statements and Risk Factors—There are Many Risks Associated with International Business" on page 15.

    Customers.  Our customers include major companies in a broad range of industries throughout the world, including manufacturers of automotive, aerospace, computer, electronic, consumer and medical products. Purchasers of our systems include original equipment manufacturers ("OEMs") such as AMP, Inc., Apple Computer, Inc., Audi AG, Benetton F1, Boeing Company, BMW Group, Canstar Sports, Inc., DaimlerChrysler Corp., Eastman Kodak Company, The Electrolux Group, General Electric Company, General Motors Corporation, Delphi Automotive Systems, Hasbro, Inc., Jordan Grand Prix, International Business Machines Corporation, Johnson & Johnson, Motorola, Inc., Navistar International Corporation, Nike, Inc., Pratt & Whitney, Raytheon Company and Texas Instruments, Inc. We also sell our products to government agencies and universities, which generally use our machines for research activities, and to independent service bureaus, including Arrk Creative Network, the largest rapid prototype manufacturer in the world, General Pattern, Moehler Design and INCS, Inc., which for a fee provide stereolithographic services to their customers. Our primary niche customization customer is Align Technology, Inc.

    Photopolymer Distribution Agreement.  Pursuant to an agreement with Vantico and subject to conditions set forth in the agreement, we are the exclusive worldwide distributor to users of SL processes of all Vantico liquid SL photopolymers. At our request, an affiliate of Vantico currently sells such photopolymers in Japan to our Japanese distributor. Subject to certain conditions, so long as Vantico provides adequate supplies, we are required to fill all of our requirements for our liquid photopolymers through purchases from Vantico. Subject to certain conditions, the agreement will remain in effect until either party gives the other six months advance notice of termination. There can be no assurance that this agreement will remain in place. Though we believe we can obtain alternate agreements from other manufacturers, the termination of this agreement or interruption of supply would have a material adverse effect on our revenues, results of operations, liquidity and financial position, at least in the short term. (See "Cautionary Statements and Risk Factors—We Depend on a Single or Limited Suppliers for Certain of our Components" on page 14.)

    Customer Support and Service.  Before installation of an SLA system, a new purchaser typically receives training at our facilities. During the first several days after installation, an applications engineer remains at the customer location to ensure that the customer is able to operate the system effectively and to answer any questions that may arise. We also make available to our customers, for a fee, additional training courses in SLA system features and applications.

    No training is necessary in connection with the purchase of a ThermoJet printer.

    We offer maintenance contracts to our customers, which generate recurring revenue. (See "Products and Services," on page 3, above.) We also make available, in the United States, a hotline to all of our users with maintenance contracts. The hotline is staffed with technical representatives who answer questions and arrange for on-site remedial services if necessary. The hotline is available Monday through Friday, local holidays excepted, 5:00 a.m. to 5:00 p.m. Pacific time. In addition, customer service, troubleshooting and answers to frequently asked questions ("FAQs") are available through our website, www.3dsystems.com. Customers may also reach us through e-mail, 24 hours a day.

    We co-founded and currently participate in both domestic and international SL User Groups, which currently include a substantial number of our customers. The User Groups organize annual conferences in both the United States and Europe, at which we make presentations relating to updates

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in stereolithography, changes we have implemented in our systems and related equipment, materials and software and future ideas and programs we intend to pursue in the upcoming years.

Production and Supplies

    All of our systems are assembled and SIM is produced at our 67,000 square foot facility in Grand Junction, Colorado. We purchase the major component parts for our systems and materials for SIM from outside sources and arrange with contract manufacturers for the manufacture of subassemblies. We integrate the subassemblies and effect final assembly of all systems at our production facility. We perform numerous diagnostic tests and quality control procedures on each system to assure its operability and reliability.

    Although there is more than one potential supplier for many material components parts, subassemblies and materials, several of the critical components, materials, and subassemblies, including lasers, materials, and certain ink jet components, are currently provided by a single or limited sources. Liquid resins for SLA systems are supplied exclusively by Vantico under the Photopolymer Distribution Agreement, described above, and either party has the right to terminate this agreement with six months notice. Our reliance on sole or limited source vendors involves risks, including the possibility of shortages of certain key components, product performance shortfalls, and reduced control over delivery schedules, manufacturing capability, quality and costs. Business disruptions, financial difficulties, or any significant change in the condition of or our relationship with a sole or limited source supplier of any particular component could have a material and adverse effect on our revenues, results of operations, liquidity and financial condition by increasing the cost of goods sold or reducing the availability of such components. An unanticipated change in the source of supply of these components or unanticipated supply limitations could adversely affect our short-term ability to meet our product orders. (See "Cautionary Statements and Risk Factors—We Depend on a Single or Limited Suppliers for Certain of our Components" on page 14.)

Competition and Patent Rights

    We believe there are no products technologically similar to our SLA systems being sold in significant quantities in the United States; however, products similar to our SLA systems are manufactured and sold by other companies in the Pacific Rim. In addition, we believe that there are other companies researching, designing, developing and marketing other types of solid imaging equipment in the United States and in foreign markets, and additional companies may announce plans to enter the solid imaging business, either with equipment similar to ours, or with other types of equipment. (See "Cautionary Statements and Risk Factors—We are Subject to Intense Competition" on page 16.)

    Although it is estimated that there are approximately 20 companies currently manufacturing rapid prototyping equipment, the following is a brief description of competing products or technologies of the companies that we believe are our current primary competitors in the SL area. DTM, Inc. markets systems based on a technology called Selective Laser Sintering, which uses a powdered material that is sintered (solidified by heating) by energy supplied by a laser. Stratasys, Inc. ("Stratasys") markets a Fused Deposition Modeling process that builds objects by dispensing individual layers of thermoplastic material through a temperature controlled head.

    Teijin Seiki, which acquired NTT Data CMET, and D-MEC market products similar to our SL products in Japan. During 1998, we signed patent cross-license agreements with NTT Data Corporation and NTT Data CMET (marketed by Teijin Seiki) and with Sony Corporation (marketed by D-MEC). Under these agreements, Sony and NTT Data each obtained a non-exclusive license to produce and sell SL systems in the Asia Pacific area. In addition, E.I. du Pont de Nemours and Company ("DuPont") has licensed certain SL technology to Teijin Seiki of Japan and Aaroflex of the United States. We believe that other Japanese companies also may be developing and marketing products

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similar to ours. Aaroflex, Inc. ("Aaroflex"), headquartered in Virginia, has sold and delivered at least one machine in the United States that offers the same functions as our SLA systems. (See "Item 3. Legal Proceedings" on page 18.)

    We believe that currently available alternatives to SL generally are not able to produce models having the dimensional accuracy and fine surface finish of models provided by our SL process. However, competitors have successfully marketed their products to our existing and potential customers. Furthermore, in many cases, the existence of these competitors extends the purchasing time while customers investigate alternative systems. We compete primarily on the basis of the quality of our products and the advanced state of our technology. Although we do not rely totally on our patents to compete, we believe that our patents will help us maintain our leading position in the SL field in the United States and Europe. During 2000, we entered into a patent license agreement with Rockwell Science Center for rights relating to direct metal fabrication technology, and we received an exclusive license, with the right to revert to a non-exclusive license, under patents relating to the use of polysiloxanes in stereolithography. (See "Proprietary Protection," on page 12, and "Cautionary Statements and Risk Factors—Patents and Proprietary Information are Critical to our Success" on page 16.)

    A number of companies, including DSM Desotech Inc. ("DSM"), which acquired the SOMOS solid imaging business of DuPont in April 1999, are currently selling SL resins, which either complement or compete with those we distribute. We believe that we supply resins to owners of a majority of the SLA systems currently installed worldwide.

    With respect to our solid object printers, we believe that the following companies are our current primary competitors. Stratasys, described above, is also a competitor in the 3D-printer area. Sanders Prototyping markets ModelMaker, a technology that deposits wax material using an ink jet print head. Z Corporation makes a printer that produces models using a starch-based powder material and a water-based liquid binder. A potential new competitor, Objet Geometries of Israel ("Objet") has been marketing its product at trade shows within the industry. Objet has committed to, but has not yet, to our knowledge, delivered any commercial systems to the market. Its system is based on an ultraviolet curable chemistry and liquid inkjet application. Another new competitor, Solid Dimensions, produces a system loosely based on Laminated Object Manufacturing ("LOM") technology. Again, to our knowledge, Solid Dimensions has not yet delivered a commercial product to the market.

    We believe that currently available alternatives to our solid object printers generally are not able to produce models having the dimensional accuracy, fine detail or smooth surface finish of models provided by our printers. We do not have the level of patent protection for the solid object printers that we have for our SL technology; however, during 1999 we acquired two patents for dot-on-dot printing technology from Dataproducts Corporation in order to help us maintain our position in this field.

    We believe that we do not currently have any significant competition for our maintenance services, although certain of our customers perform their own maintenance in-house and some use other providers of service contracts and time and materials arrangements. We offer software and hardware maintenance contracts to our customers (see "Products and Services," on page 4). Maintenance for some SLA systems sold internationally is offered by our distributors (see "Marketing and Customers," on page 8).

    Future competition is expected to arise both from the development of new technologies or techniques not encompassed by the patents held by or licensed to us, and through improvements to existing technologies, such as automated machining. We have determined to follow a strategy of continuing product development and aggressive patent prosecution to protect ourselves to the extent possible in these areas.

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Proprietary Protection

    Charles W. Hull, the Company's founder and Chief Technology Officer developed the stereolithography technology used in our SLA products, while employed by UVP, Inc. This technology was originally patented by UVP, Inc. and subsequently licensed to us in 1986. We acquired the patent in 1990.

    In the case of our ThermoJet printers, the ink jet technology employed by the printers has been primarily developed elsewhere and is subject to license agreements. The thermoplastic material used in and the application of ink jet technology to solid imaging have been developed by us. During 1999, we acquired two patents from Dataproducts Corporation for dot-on-dot printing technology in order to increase our patent protection in this area.

    At December 31, 2000, we had 232 patents which include 114 in the United States, 64 in Europe, 12 in Japan and 42 in other foreign countries. At that date, we had 36 pending patent applications with the United States, 51 in the Pacific Rim, 29 in Europe, 6 in Canada and 1 in Latin America. As new developments and components to the technology are discovered, we intend to apply for additional patents.

    In 1997, we filed patent infringement lawsuits against Aaroflex, Inc. and Teijin Seiki. The Aaroflex lawsuit seeks compensation from Aaroflex for utilizing certain SL technology which we allege is incorporated in seven of our United States patents, and we seek other damages and attorneys' fees as well as an injunction barring Aaroflex from marketing its products using technology incorporated in our patents. Teijin Seiki has filed an invalidation action against one of our patents, an unfavorable decision was appealed, and we have appealed that decision to the highest court in Japan. The Teijin Seiki lawsuit, which alleges infringement of our Japanese patents, and seeks damages and injunctive relief, has been suspended pending final determination of the invalidation action. (See "Item 3. Legal Proceedings" on page 18.)

    Application for a patent offers no assurance that a patent will be issued as applied for. Issuance of a patent offers no assurance that the patent can be protected against any claims of invalidation or that the patent can be enforced against any infringement. In addition, litigation of patent issues can be costly and time-consuming. (See "Cautionary Statements and Risk Factors—Patents and Proprietary Rights are Critical to our Success" on page 16.)

Employees

    At December 31, 2000, we had 441 full-time employees, including 5 members of executive management supplied pursuant to an agreement with Regent Pacific Management Corporation ("Regent Pacific") (see "Item 13. Certain Relationships and Related Transactions" on page 30 for further information on the Regent Pacific Agreement). In addition, at that same date we utilized the services of 26 independent contractors. None of these employees or independent contractors is covered by labor agreements. We consider our relations with our employees and independent contractors to be satisfactory.

CAUTIONARY STATEMENTS AND RISK FACTORS

    The risks and uncertainties described below are not the only risks and uncertainties we face. Additional risks and uncertainties not presently known to us or that we currently deem immaterial also may impair our business operations. If any of the following risks actually occur, our business, results of operations and financial condition could suffer. In that event the trading price of our common stock could decline, and our stockholders may lose all or part of their investment in our common stock. The risks discussed below also include forward-looking statements and our actual results may differ substantially from those discussed in these forward-looking statements.

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Fluctuations in Quarterly Results—Our Operating Results Vary From Quarter to Quarter Which Could Impact Our Stock Price

    Our operating results fluctuate from quarter to quarter and may continue to fluctuate in the future. In some quarters it is possible that results could be below expectations of analysts and investors. If so, the price of our common stock may decline.

    Many factors, some of which are beyond our control, may cause these fluctuations in operating results. These factors include:

Acceptance and reliability of new products in the market

Size and timing of product shipments

General world economic conditions

Changes in the mix of products and services sold

Currency and economic fluctuations in foreign markets and other factors affecting international sales

Delays in the introduction of new services/products

Price competition

Impact of changing technologies

    In addition, certain of our components require an order lead time of three months or longer. Other components that currently are readily available may become more difficult to obtain in the future. We cannot assure you that we will not experience delays in the receipt of certain key components. To meet forecasted production levels, we may be required to commit to certain long lead time items prior to receiving orders for our products. If our forecasts exceed actual orders, we may hold large inventories of slow moving or unusable parts, which could have an adverse effect on our cash flows and results of operations.

    Because of all of these and other factors, we cannot assure you that we will achieve or sustain quarterly or annual profitability in the future.

The Mix of Products Sold Affects Our Overall Profit Margins

    We continuously expand our product offerings and work to increase the number of geographic markets in which we operate and the distribution channels we use in order to reach the various markets and customers. This variety of products, markets and channels results in a range of gross margins and operating income which can cause substantial quarterly fluctuations depending on the mix of product shipments quarter to quarter. We may experience significant quarterly fluctuations in gross margins or net income due to the impact of the mix of products, channels, or geographic markets utilized from period to period. Also, the changing mix of products sold over time may result in lower average gross margins and returns.

We Must Keep Pace with Technological Change and Introduce New Products to Remain Competitive

    To remain competitive, we must continue to enhance and improve the functionality and features of our products, services and technologies. The solid imaging industry is characterized by rapid technological change, changes in user and customer requirements and preferences, frequent new product and service introductions embodying new technologies and the emergence of new industry standards and practices. These developments could render our existing products and proprietary technology and systems obsolete. Our success will depend, in part, on our ability to:

Obtain leading technologies useful in our business

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Enhance our existing products

Develop new products and technology that address the increasingly sophisticated and varied needs of prospective customers, particularly in the area of material functionality

Respond to technological advances and emerging industry standards and practices on a cost-effective and timely basis

Retain key technology employees

    Also, our competitors may develop new technologies or materials that render our existing products and services obsolete. We believe that our future success will depend on our ability to deliver products that meet changing technology and customer needs. As part of our strategy of continuous development, we acquired the stock and intellectual property of OptoForm SARL in February 2001. We anticipate that the technology available through this acquisition will assist us in meeting customer needs and competitive threats; however, we cannot assure you that the development of this technology will be successful or lead to commercially viable products.

Our New Products May Not Be Commercially Accepted

    During 2000, we introduced several new products to the market, primarily software and materials. In addition, in March 2001 we announced the introduction of our newest SLA system. These products undergo thorough quality assurance testing; however, problems have arisen in connection with prior new product introductions, and we cannot assure you that we will be able to fix any new problems that arise in a timely manner, or at all. Also, we cannot assure you that any new products we develop will be commercially accepted. If there are many problems with our new products, or if the marketplace does not accept these products, our results of operations and financial condition could be materially and adversely affected.

We Depend on a Single or Limited Suppliers for Certain of our Components

    There are several potential suppliers of the material components, parts and subassemblies for our products. However, we currently use only one or a limited number of suppliers for several of the critical components, parts and subassemblies, including our lasers, materials and certain ink jet components. Vantico supplies us with the resins we distribute pursuant to the Photopolymer Distribution Agreement, which either party has the right to terminate with six months advance notice. If the agreement were to be terminated, we would be unable to locate an immediate alternative source of the full range of resins, which would result in a material adverse effect on our revenues, results of operations, liquidity and financial position. Our reliance on a limited number of vendors involves many risks including:

Shortages of certain key components

Product performance shortfalls

Reduced control over delivery schedules, manufacturing capabilities, quality and costs

    If any of our suppliers suffers business disruptions, financial difficulties, or if there is any significant change in the condition of our relationship with the supplier, our costs of goods sold may increase or we may be unable to obtain these key components for our products. In either event, our revenues, results of operations, liquidity and financial condition would be adversely affected. While we believe that we can obtain most of the components necessary for our products from other manufacturers, any unanticipated change in the source of our supplies, or unanticipated supply limitations, could adversely affect our ability to meet our product orders.

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We Rely on Regent Pacific Management Corporation for our Executive Management

    Regent Pacific Management Corporation ("Regent Pacific") provides management services for us. The management services provided under our agreement with Regent Pacific include the services of Brian K. Service as President and Chief Executive Officer, and four other Regent Pacific personnel as part of our management team. On September 9, 2000, we extended our agreement with Regent Pacific from 12 months to 24 months, with the potential for additional extensions beyond that period. The extended agreement also provides for the availability of up to two additional executives to provide management services on an as needed basis. All other terms of the agreement remain substantially unchanged. If the agreement with Regent Pacific were canceled or not renewed, the loss of the Regent Pacific personnel could have a material adverse effect on our operations, especially during any transition phase to new management after a cancellation or non-renewal. Similarly, if any adverse change in our relationship with Regent Pacific occurs, it could hinder management's ability to direct our business and materially and adversely affect our results of operations and financial condition.

There are Many Risks Associated with International Business

    A material portion of our sales is to customers in foreign countries. Revenues from international customers accounted for approximately 46.1% of total revenues in 2000, 47.5% of total revenues in 1999 and 44.1% of total revenues in 1998. There are many risks inherent in our international business activities. Our foreign operations could be adversely affected by:

Unexpected changes in regulatory requirements

Export controls, tariffs and other barriers

Social and political risks

Fluctuations in currency exchange rates

Seasonal reductions in business activity in certain parts of the world, particularly during the summer months in Europe

Reduced protection for intellectual property rights in some countries

Difficulties in staffing and managing foreign operations

Taxation

Other factors, depending on the country in which an opportunity arises

    In order to manage our exposure to risks associated with fluctuations in foreign currency exchange rates, we have entered into hedging transactions. These hedging transactions include purchases of options or forward contracts to minimize the risk associated with cash payments from foreign subsidiaries to 3D California. However, we cannot assure you that our hedging transactions will provide us adequate protection in our foreign operations, and consequently our overall revenues and results of operations may be adversely affected.

The Adoption of the Euro Presents Uncertainties

    In January 1999, the new "Euro" currency was introduced in certain European countries that are part of the European Monetary Union, or EMU. Beginning in 2003, all EMU countries are expected to be operating with the Euro as their single currency. A significant amount of uncertainty exists as to the effect the Euro will have on the marketplace generally. Some of the rules and regulations relating to the governance of the currency have not yet been defined and finalized.

    We believe that our internal systems and financial institution vendors will not be materially affected by the Euro conversion, and we are examining current marketing and pricing policies and strategies that we may put in place upon conversion to the Euro. The cost of our effort is not expected

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to materially affect our results of operations or financial condition. However, we cannot assure you that we have identified all issues related to the Euro conversion and that any additional issues would not materially affect our results of operations or financial condition. For example, the conversion to the Euro may have competitive implications on our pricing and marketing strategies, and we may be at risk to the extent our principal European customers are unable to respond effectively to the impact of the Euro conversion.

Patents and Proprietary Rights are Critical to Our Success

    We regard our copyrights, service marks, trademarks, trade secrets, patents and similar intellectual property as critical to our success. As of December 31, 2000, we held 232 patents, which include 114 in the United States, 64 in Europe, 12 in Japan, and 42 in other foreign jurisdictions. At that date, we had 36 pending patent applications with the United States, 51 in the Pacific Rim, 29 in Europe, 6 in Canada and 1 in Latin America. As we discover new developments and components to the technology, we intend to apply for additional patents. Effective trademark, service mark, copyright, patent and trade secret protection may not be available in every country in which our products and services are made available. We cannot be certain that the pending patent applications will be granted or that we have taken adequate steps to protect our proprietary rights, especially in countries where the laws may not protect our rights as fully as in the United States. Moreover, our competitors may independently develop or initiate technologies that are substantially similar or superior to ours. We cannot be certain that we will be able to maintain a meaningful technological advantage over our competitors.

    Third parties may infringe or misappropriate our proprietary rights, and we intend to pursue enforcement and defense of our patents and other proprietary rights. We could incur significant expenses in preserving our proprietary rights and these costs could have a material adverse effect on our results of operations, liquidity and financial condition and could cause significant fluctuations in results from quarter to quarter. We are currently pursuing patent infringement actions in the Central District of California against Aaroflex, Inc., and in Japan against Teijin Seiki Co. Ltd.

We are Subject to Intense Competition

    The solid imaging industry is highly competitive and subject to technological change, innovation, and new product introductions. Certain of our existing and potential competitors are researching, designing, developing and marketing other types of equipment. A few of these competitors have financial, marketing, manufacturing, distribution and other resources substantially greater than ours. In many cases, the existence of these competitors extends the purchase decision time as customers investigate the alternative products and solutions. Also, these competitors have marketed these products successfully to our existing and potential customers. In addition, a number of companies currently sell stereolithography materials, which both complement and compete with the materials we distribute.

    We expect future competition may arise from the development of allied or related techniques that are not encompassed by our patents, the issuance of patents to other companies that inhibit our ability to develop certain products, and the improvement to existing technologies. Increased competition could result in price reductions for our products, reduced margins, and loss of market share, any of which could adversely impact our business. We have determined to follow a strategy of continuing product development and aggressive patent prosecution to protect out competitive position to the extent practicable. We cannot assure you that we will be able to maintain our leading position in the field of rapid prototyping or continue to compete successfully against current and future sources of competition. These competitive pressures may adversely affect our profitability and financial performance.

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Volatility of Stock Price

    Historically, our stock price has been volatile. The prices of the common stock have ranged from $7.50 to $21.69 during the 52-week period ended December 31, 2000.

    Factors that may have a significant impact on the market price of our common stock include:

Future announcements concerning our developments or those of our competitors, including the receipt of substantial orders for products

Quality deficiencies in services or products

Results of technological innovations

New commercial products

Changes in recommendations of securities analysts

Proprietary rights or product or patent litigation

Sales or purchase of substantial blocks of stock

    Our future earnings and stock price may be subject to significant volatility, particularly on a quarterly basis. Shortfalls in our revenues or earnings in any given period relative to the levels expected by securities analysts could immediately, significantly and adversely affect the trading price of our common stock.

We are Subject to Anti-Takeover Provisions

    The Board of Directors is authorized to issue up to 5 million shares of preferred stock. The Board also is authorized to determine the price, rights, preferences and privileges of those shares without any further vote or action by the stockholders. The rights of the holders of any preferred stock may adversely affect the rights of holders of common stock. Our ability to issue preferred stock gives us flexibility concerning possible acquisitions and financing, but it could make it more difficult for a third party to acquire a majority of our outstanding voting stock. In addition, any preferred stock to be issued may have other rights, including economic rights, senior to the common stock, which could have a material adverse effect on the market value of the common stock.

    We are subject to Delaware laws that could have the effect of delaying, deterring or preventing a change in control of the Company. One of these laws prohibits us from engaging in a business combination with any interested stockholder for a period of three years from the date that the person became an interested stockholder, unless certain conditions are met. In addition, provisions of our Certificate of Incorporation and Bylaws could have the effect of discouraging potential takeover attempts or making it more difficult for stockholders to change management.

    In addition, we have adopted a Shareholders Rights Plan. Under the Rights Plan, we distributed a dividend of one right for each outstanding share of our common stock. These rights will cause substantial dilution to the ownership of a person or group that attempts to acquire us on terms not approved by our Board of Directors and may have the effect of deterring hostile takeover attempts.

Item 2. Properties

    Our principal administrative functions, sales and marketing, product development, Technology Center and training facilities are located in a 78,320 square foot building in Valencia, California under a lease that expires on December 31, 2002. We also lease sales and service offices in Michigan. The space leased for sales and service offices is generally for one or two occupants and for terms of a year or less. Three other lease obligations, all of which are sublet, are for properties whose use has been discontinued in California, Georgia, and Texas. Sales and service offices are also located in five countries in the European Community (France, Spain, Germany, the United Kingdom and Italy).

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    All of our manufacturing and United States customer support operations are located in a 67,000 square foot facility located in Grand Junction, Colorado (the "Colorado Facility"). The construction cost of the Colorado Facility has been financed through a $4.9 million variable rate industrial development bond.

    In connection with the asset acquisition of Keltool, Inc. in September 1996, we assumed its obligations under an existing lease for approximately 6,000 square feet located in St. Paul, Minnesota. In the first quarter of 1999, we completed the sale of our St. Paul operations and assigned this lease to the acquirer. In addition, we leased approximately 21,000 square feet in Valencia, California for the 3D Keltool operations. The lease for this facility was terminated in 1999, with the Company acting as a guarantor for the new tenant until the lease expiration on June 30, 2000.

    For information concerning obligations of the Company under its leases, see "Note 17(a) of Notes to Consolidated Financial Statements" on page F-23. For information concerning our Colorado Facility, see Note 10 on page F-15.

    We believe that the facilities described above will be adequate to meet our needs for the immediate future.

Item 3. Legal Proceedings

    3D Systems, Inc. v. Aaroflex, et al. On January 13, 1997, we filed a complaint in the United States District Court, Central District of California, against Aarotech Laboratories, Inc. ("Aarotech"), Aaroflex, Inc. ("Aaroflex") and Albert C. Young ("Young"). Aaroflex is the parent corporation of Aarotech. Young is the Chairman of the Board and Chief Executive Officer of both Aarotech and Aaroflex. The original complaint alleged that stereolithography equipment manufactured by Aaroflex infringes six of our patents. In August 2000, two additional patents were added to the complaint. We seek damages and injunctive relief from the defendants, who have threatened to sue us for trade libel. To date, the defendants have not filed such a suit.

    Following decisions by the District Court and the Federal Circuit Court of Appeals on jurisdictional issues, Aarotech and Albert C. Young were dismissed from the suit, and an action against Aaroflex is proceeding in the District Court. Motions for summary judgment by Aaroflex on multiple counts contained in our complaint and on Aaroflex's counterclaims have been dismissed, fact discovery in the case has been completed, and we have filed motions for summary judgment for patent infringement. A decision on these motions is pending. Trial on any remaining undecided issues is scheduled to occur in 2001.

    3D Systems, Inc. v. Teijin Seiki Co. Ltd. On March 21, 1997, we filed a patent infringement action in District Court in Osaka, Japan under one of our Japanese patents, alleging infringement, and seeking damages from the defendant and injunctive relief (the "Teijin Seiki Lawsuit"). The action is in the early stages of prosecution. As described below, Teijin Seiki has filed an invalidation action against one of our patents, and we have appealed an unfavorable decision in that action. As a result, the Teijin Seiki Lawsuit has been suspended pending final determination of the invalidation action.

    Patent Opposition and Invalidation Proceedings. We have been granted twelve patents in Japan. An opposition was submitted against one of these patents, but the opposition was dismissed, and the patent has been maintained as originally issued. Furthermore, one of the twelve patents has had three invalidation trials filed against it. These invalidation trials were decided against us. We have responded by appealing the decision in the third trial. The decision in the appeal was unfavorable and has been appealed to the highest court in Japan. The final decision may conclude with present or modified protection, or may result in revocation of the patent.

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Item 4. Submission of Matters to a Vote of Security Holders

    No matters were submitted to a vote by security holders during the fourth quarter of fiscal 2000.

Item 4a. Executive Officers of the Registrant

    The following table sets forth certain information concerning the executive officers of the Company:

    The principal occupations of our executive officers are as follows:

Brian K. Service:  Mr. Service has served as President and Chief Executive Officer of the Company since September 1999 and, since October 1999, has also served as President and Chief Executive Officer of 3D California. Mr. Service is a Principal of Regent Pacific Management Corporation ("Regent Pacific"), and he provides services to the Company pursuant to an agreement between the Company and Regent Pacific. (See "Item 13. Certain Relationships and Related Transactions" on page 24.) Prior to Regent Pacific, Mr. Service served as Chief Executive Officer of Salmond Smith Biolab, Ltd. Prior to Salmond, he was Chief Executive Officer of Milk Products, Inc. Mr. Service holds a Bachelor's degree in Chemical Engineering from Canterbury University of New Zealand and has completed the Stanford Executive Program from Stanford University Business School.

Charles W. Hull:  Mr. Hull has served as Vice President, Chief Technology Officer since April 1997. Prior to that, Mr. Hull has served as Chief Operating Officer and President of the Company (from August 1993 to April 1997), and as President of 3D California (from March 1986 to October 1999). He was Vice President of UVP, Inc., a systems manufacturing company, from January 1980 to March 1986 where he developed the Company's stereolithography technology.

E. James Selzer:  Mr. Selzer served as Vice President, Finance from April 2000, when he joined the Company, to November 2000, at which time he was promoted to Chief Financial Officer and Vice President, Finance, and continues to serve as such. From January 1999 to March 2000, he was a partner in the financial consulting firm of White Wolf Partners, LLP where he served as a consultant to several companies, including 3D Systems Corporation. From January 1998 to January 1999, he served as Chief Financial Officer of Pico Products, Inc. Prior thereto, from May 1994 to January 1998, Mr. Selzer was a senior associate with Jay Alix & Associates, a turnaround management firm. Mr. Selzer holds an MBA from the University of Michigan and a Bachelor's Degree in Accounting and Business from the University of Kansas. Mr. Selzer is a Certified Public Accountant.

Martin E. McGough:  Mr. McGough has served as Senior Vice President of Development and Operations since May 2000. Mr. McGough served as Vice President and Worldwide Operations Manager from September 1997 to May 2000, after joining the Company in January of 1997, and was responsible for manufacturing and operations, as well as worldwide field service. He was formerly with Maxtor Corporation where he held the position of Senior Director of Strategic Commodities. Prior to Maxtor, he held management positions in Operations, Marketing, Program Management and other

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manufacturing and materials positions. Mr. McGough received his Bachelor's degree in Business Administration and his Master's in Business Management from California State University, Northridge.

Grant R. Flaharty:  Mr. Flaharty has served as Senior Vice President of Worldwide Sales & Marketing since May 2000 and is responsible for European operations. Effective January 2001, Mr. Flaharty's duties include worldwide field service as well. Mr. Flaharty served as VP, General Manager, 3D Systems Europe, from September 1999 to May 2000 after joining the Company as Worldwide Controller in April of 1998. He was formerly with Qualcomm, Inc., a developer of wireless communications products, as Director of Manufacturing Finance. Prior to Qualcomm, he was with Motorola, Inc. as Operations Controller. Mr. Flaharty received his Bachelor's degree in Accounting from Regis College and is also a Certified Public Accountant.

    Subject to the Agreement between the Company and Regent Pacific, all officers serve at the pleasure of the Board of Directors of the Company.

PART II

Item 5. Market for Registrant's Common Equity and Related Stockholder Matters.

    The following table sets forth, for the periods indicated, the high and low closing sales prices of our common stock (symbol: TDSC) on the Nasdaq National Market.

    As of February 28, 2001, the outstanding common stock was held of record by 447 stockholders.

Dividends

    We have not paid any dividends on our common stock and currently intend to retain any future earnings for use in our business. Therefore, you should not expect that any dividends will be declared on the common stock in the foreseeable future. Any dividend payment will be at the discretion of our Board of Directors and will be dependent upon our earnings, operating and financial condition and capital requirements, as well as general business conditions.

Item 6. Selected Financial Data

    The following summary of selected financial data for the periods set forth below has been derived from the Consolidated Financial Statements of 3D Systems Corporation. The information for the fiscal years ended December 31, 2000, 1999 and 1998 should be read in conjunction with Management's

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Discussion and Analysis of Results of Operations and Financial Condition and with the Consolidated Financial Statements appearing elsewhere in this Form 10-K.

⁽¹⁾

Includes systems and related equipment, material, software and other component parts as well as rentals of equipment.

⁽²⁾

Includes maintenance services provided by the Company's Technology Centers and training services.

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Item 7. Management's Discussion and Analysis of Results of Operations and Financial Condition

    Except for historical information contained herein, the following discussion contains forward-looking statements that involve risks and uncertainties. Our future results could differ materially from those discussed here. Factors that could cause or contribute to these differences include, but are not limited to, our ability to contain costs, increase recurring revenue, maintain gross revenues at a level necessary to maintain gross profit margins, the availability and acceptance of products, the impact of competitive products and pricing, dependence on key personnel and suppliers, industry-wide domestic and international economic conditions and other risks detailed in this section and in the sections entitled Results of Operations, Liquidity and Capital Resources and Cautionary Statements and Risk Factors.

Overview

    We develop, manufacture and market worldwide solid imaging systems designed to rapidly produce physical objects from the digital output of solid or surface data from computer aided design and manufacturing ("CAD/CAM") and related computer systems. Our systems include SLA® systems and ThermoJet solid object printers.

    SLA industrial systems use our proprietary stereolithography ("SL") technology, a solid imaging process which uses a laser beam to expose and solidify successive layers of photosensitive epoxy resin until the desired object is formed to precise specifications in epoxy or acrylic resin. SL-produced parts can be used for concept models, engineering prototypes, patterns and masters for molds, consumable tooling, and short-run manufacturing of final product, among other applications. ThermoJet solid object printers employ hot melt ink jet technology to build models in successive layers using our proprietary thermoplastic material. These printers, about the size of an office copier, are network-ready and are designed for operation in engineering and design office environments. The ThermoJet printer output can be used as patterns and molds, and when combined with other secondary processes such as investment casting, can produce parts with representative end-use properties.

    Our customers include major corporations in a broad range of industries including service bureaus and manufacturers of automotive, aerospace, computer, electronic, consumer and medical products. Our revenues are generated by product and service sales. Product sales are comprised of sales of systems and related equipment, materials, software and other component parts, as well as rentals of systems. Service sales include revenues from a variety of on-site maintenance services, customer training, services provided by our Technology Centers and licensing of 3D Keltool® process and support services.

    For the year ended December 31, 2000 we continued to show improvements in several areas from the operating plan put in place in the fourth quarter of 1999. As a result of increased recurring revenues, particularly materials, and increased unit sales, overall revenue improved considerably from the prior year. We also continued to realize the benefit from contracts for multi-unit sales of SLA and ThermoJet systems. These sales and marketing efforts, as well as strict cost controls, have resulted in overall increased revenue, significantly improved gross profits, reduced operating expenses and increased profitability.

    On September 9, 2000, the Company extended its agreement with Regent Pacific from 12 months to 24 months, with the potential for additional extensions beyond that period. All other terms of the agreement remain substantially unchanged. The Board of Directors took this action based on the results achieved by Regent Pacific over the last year and the Board's confidence in their ability to continue to achieve improved results in the future.

    In 2001, we will continue to focus on multi-unit sales of our higher-end SLA systems, selling and marketing efforts related to the rapid manufacturing and niche customization market segments, and continued cost containment efforts. We expect that our continued emphasis on developing new materials and applications for our products will result in revenues from materials continuing to increase

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in total as well as a percent of our total revenue, all of which will provide continued opportunities for increased profitability. These are forward-looking statements and, as with other such statements, are subject to uncertainties. For example, the exact timing of customer requirements, competitive selling and pricing issues, requirements for continued developments of systems and materials, commercial acceptance of new materials, and any ineffectiveness of cost containment efforts may negatively impact our revenue and profitability objectives.

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Results of Operations

    The following table sets forth the percentage relationship of certain items from the Company's Statements of Operations to total sales:

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    The following table sets forth, for the periods indicated, total sales attributable to each of the Company's major products and services groups, and those sales as a percentage of total sales (in thousands, except for percentages):

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2000 Compared to 1999

    Sales.  Sales in 2000 were $109.7 million, an increase of 13.1% from the $96.9 million recorded in 1999.

    Product sales in 2000 of $80.2 million increased 20.1% from $66.8 million in 1999. The increase in product sales over the prior year is due primarily to increased sales of SLA systems and related equipment of $5.1 million or 12.8% and an increase in material revenue of $6.7 million or 36.1%. The increase in machine sales results from increased sales of the higher-end SLA industrial systems, especially the SLA 7000. In 2000, we sold a total of 57 SLA 7000 systems compared to 29 in 1999. We expect sales of large frame machines to increase in 2001. Additionally, we recently have introduced the Viper si2 SLA system which we expect to favorably impact our overall system revenue. This is a forward-looking statement and, as with other such statements, is subject to uncertainties. For example, new products may not be commercially accepted or may suffer technological difficulties. Additionally, the introduction and related pricing of competitive systems may negatively impact the growth rate of recurring revenue.

    The increase in material revenue is primarily due to an increase in the installed base of machines and a stronger sales and marketing emphasis on recurring revenue related to the sale of materials derived from post-installation sales. We expect both of these trends to continue in 2001. This is a forward-looking statement and, as with other such statements, is subject to uncertainties. For example, the introduction and related pricing of competitive systems and materials may negatively impact the growth rate of recurring revenue.

    Service sales in 2000 totaled $29.4 million, a decrease of 2.4% or $0.7 million from $30.1 million in 1999. The decrease in service revenue is a result of the net impact of a reduction in revenue from maintenance contracts partially offset by an increase related to time and material revenues. We expect to achieve increases in service revenue in 2001 due to the wider variety of maintenance contracts we are offering to our customers and enhanced selling efforts in this area. This is a forward-looking statement and, as with other such statements, is subject to uncertainties. For example, competitive pricing pressures by third parties supplying maintenance services and the increased reliability of our systems may limit our ability to increase overall service revenues.

    Cost of sales.  Cost of sales decreased to $56.8 million or 51.8% of sales in 2000 from $56.9 million or 58.7% of sales in 1999.

    Product cost of sales as a percentage of product sales decreased to 43.7% in 2000 compared to 53.8% in 1999. This decrease as a percent of product sales is due primarily to reduced component costs, increased manufacturing activity relative to our level of fixed overhead expenses, and a shift in the sales mix to higher-end SLA systems in 2000 as compared to 1999, all of which positively impacted the overall product cost of sales as a percent of product revenue.

    Service cost of sales as a percentage of service sales increased to 73.8% in 2000 from 69.6% in 1999. This is attributable to a decrease in service revenue over the prior year and a change in the mix of service revenues in 2000 from maintenance contracts to time and material revenues.

    Selling, general and administrative expenses.  Selling, general and administrative ("SG&A") expenses decreased $2.6 million or 7.3% to $32.7 million in 2000 compared to $35.3 million in 1999. The decrease was primarily the result of cost reduction benefits associated with the operating plan adopted in late 1999, more focused selling and marketing efforts and high costs associated with the launch of new products in 1999.

    Research and development expenses.  Research and development expenses in 2000 decreased $1.1 million or 12.5% to $7.8 million compared to $8.9 million in 1999. This is a result of more focused engineering efforts on specific development projects and the introduction of new products in early

26

1999. Research and development expenses as a percentage of total revenue were 7.1% in 2000 compared to 9.2% in 1999. In the future, we expect research and development expenses as a percent of total revenue to be maintained at approximately 8% of total revenue. This is a forward-looking statement and, as with other such statements, is subject to uncertainties. For example, if our overall revenue level increases more rapidly than our expenditures on research and development, these costs as a percent of our total revenue may fall below our expected levels.

    Other expenses.  Other expenses totaled $3.4 million in 1999. No such costs were incurred in 2000. The cost incurred in 1999 related to litigation, settlement costs and non-recurring charges associated with certain employee and exit plan costs.

    Income (loss) from operations.  Operating income in 2000 was $12.3 million or 11.3% of total revenue versus an operating loss of $7.6 million or 7.8% of total revenue in 1999. The improvement is primarily attributable to increased revenue, improved gross margins and reduced operating expenses.

    Provision for (benefit from) income taxes.  For 2000, our tax provision was $4.3 million or 34.6% of the pre-tax income, compared to a tax benefit of $2.2 million on pre-tax loss of $7.5 million in 1999.

1999 Compared to 1998

    Sales.  Sales in 1999 were $96.9 million, a decrease of 1.2% from the $98.1 million recorded in 1998.

    System sales in 1999 increased $0.6 million or 1.4% to $45.2 million compared to $44.6 million in 1998. The increase in sales relates primarily to a higher level of ThermoJet printers sold. The sales of SLA machines showed a nominal increase in 1999 due to problems associated with the introduction of the SLA 7000 system early in the year which initially created some confusion in the marketplace relative to customers' needs and whether the SLA 7000 system or other systems would better suit our customers' requirements. These issues were addressed in the latter half of the year and resulted in a higher number of SLA units being sold relative to the first half of the year.

    In 1999, our total revenue from Europe increased to $40.3 million from $35.4 million in 1998. This represents 41.6% and 36.0% of our total revenue for 1999 and 1998, respectively. We attribute this higher rate of growth relative to the rest of the world to a less mature market for our systems in Europe versus the United States and the benefit realized from the acquisition of a major competitor in 1997.

    Material sales in 1999 increased $3.0 million to $18.6 million versus $15.6 in 1998. This was due primarily to higher material sales for both the SLA systems and ThermoJet printers.

    Service sales in 1999 decreased $2.5 million, or 7.8%, compared to 1998, primarily due to increased competition from other providers of service contracts and time and material arrangements, and due to the introduction of tiered pricing plans offered to our customers. Technology Center revenues remained at lower levels throughout the year relative to 1998 due to a strategic shift in focus to sales support. Also, the sale of the St. Paul, Minnesota 3D Keltool inserts business caused a decline in insert revenues in 1999 versus 1998.

    Cost of sales.  Cost of sales increased to $56.9 million or 58.7% of sales in 1999 compared to $55.5 million or 56.6% of sales in 1998.

    Product cost of sales as a percentage of product sales increased from 51.2% in 1998 to 53.8% in 1999. This increase was the result of a change in sales mix resulting from selling a higher number of ThermoJet printers which have a lower gross margin than SLA systems. This was mitigated slightly by a higher overall level of sales in Europe which has historically had a higher average selling price for SLA systems than elsewhere and a higher level of material sales, some of which have a relatively high gross margin relative to other products.

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    Service cost of sales as a percentage of service sales increased slightly to 69.6% in 1999 from 67.5% in 1998 primarily due to continued competitive pricing pressure relating to longer term maintenance contracts and time and materials services. In addition, field service revenue decreased as a result of increased reliability of our systems.

    Selling, general and administrative expenses.  Selling, general and administrative ("SG&A") expenses increased by $4.8 million or 15.8% to $35.3 million in 1999 versus $30.4 million in 1998. This was primarily due to an increase of $1.5 million in marketing expenses in 1999 over 1998 resulting from the marketing and communication programs undertaken for the introduction of the SLA 7000 system and the ThermoJet printer in early 1999. This was in addition to an overall buildup of the sales and marketing department that occurred during late 1998 and continued into early 1999. General and administrative expenses increased $2.4 million to $12.7 million in 1999 versus $10.3 million in 1998. Higher costs were incurred relating to general and administrative expenses as a result of management changes during 1999 and the lack of strict policies and procedures governing expenditures, which subsequently were established in connection with the new operating plan implemented during the fourth quarter of 1999, as well as costs associated with the sale of the 3D Keltool insert operations and legal expenses associated with the protection of certain of our patents.

    Research and development expenses.  Research and development expenses decreased in 1999 to $8.9 million from $9.4 million in 1998. The decrease in research and development expenses in 1999 was primarily a result of significant investment in 1998 in new product introduction (SLA 7000 system and ThermoJet solid object printer).

    Other expenses.  During 1999, we incurred $3.4 million relating to non-recurring charges associated with actions taken by management involving certain employee related costs and costs associated with the litigation and settlement costs for the Centuri Litigation.

    Income (loss) from operations.  The operating loss in 1999 was $7.6 million or 7.8% of revenue versus operating income of $2.7 million or 2.8% of revenue in 1998. The 1999 loss relates to lower average gross margins, additional operating expenses associated with realigning our operations, and higher marketing costs incurred relative to 1998.

    Provision for (benefit from) income taxes.  For 1999, our tax benefit was $2.2 million or 29.7% of the pre-tax loss, compared to a tax expense of $1.1 million on pre-tax income of $3.2 million in 1998. Our effective tax rate was favorably impacted primarily by research credits and the effects of foreign operations.

Foreign Operations

    International sales, primarily from Europe, accounted for 46.1%, 47.5% and 44.1% of total sales in 2000, 1999 and 1998, respectively. For information with respect to allocation of sales among the Company's foreign operations, see "Note 16 of Notes to Consolidated Financial Statements" on page F-22.

Liquidity and Capital Resources

28

    Net cash provided by operating activities in 2000, 1999 and 1998 was $5.1 million, $1.6 million and $7.6 million, respectively. The cash flow from operations in 2000 was comprised primarily of net income of $8.1 million, depreciation and amortization expense of $6.2 million, tax benefit related to stock option exercises of $2.0 million, increases in accounts payable of $2.5 million and deferred revenues of $4.8 million. This is partially offset by increases in accounts receivable of $6.3 million, lease receivables of $2.0 million, inventory of $7.0 million, prepaid and other assets of $4.0 million and a decrease in deferred income taxes of $2.0 million other liabilities of $1.4 million.

    Net cash used for investing activities in 2000 totaled $2.6 million primarily for property and equipment relating particularly to demonstration equipment for new products, computers and manufacturing equipment required for expansion, license and patents costs, and software development costs.

    Net cash provided by financing activities in 2000 totaling $4.2 million was the result of cash provided from the exercise of stock options net of long-term debt repayments.

    We believe that funds generated from operations and existing working capital will be sufficient to satisfy our anticipated operating requirements for at least the next 12 months. From time to time, we consider the acquisition of businesses, products or technologies complementary to our current business. In February 2001, we acquired the stock and intellectual property of OptoForm SARL (see Note 19 of "Notes to Consolidated Financial Statements" on page F-25). Should we decide to pursue such additional transactions, we may need to borrow additional funds.

    There were no significant inflationary trends that affected us in 2000.

Item 7a. Quantitative and Qualitative Disclosures About Market Risk

    We are exposed to the impact of interest rate changes and foreign currency fluctuations.

    Interest Rate Risk.  Our exposure to market rate risk for changes in interest rates relates primarily to our cash investments and long-term debt. We invest our excess cash in money market funds or other high quality investments. We protect and preserve our invested funds by limiting default, market and reinvestment risk.

    Investments in floating rate interest-earning instruments carry a degree of interest rate risk. Floating rate securities may produce less income than expected if interest rates fall. Due in part to this factor, our future investment income may fall short of expectations due to changes in interest rates.

    We are exposed to interest rate risk on the industrial development bond for our Colorado facility, which has a variable interest rate. The bond has an outstanding balance of $4.4 million at December 31, 2000, and changes in interest rates would have an immaterial impact on the Company's operations. We have not entered into any hedging instruments to protect ourselves against future increases in interest rates, which would negatively impact the amount of interest we are required to pay. However, we do not feel that this risk is significant and we do not plan to attempt to hedge to mitigate this risk in the foreseeable future.

    Foreign Currency Risk.  International revenues accounted for 46.1% of our total revenue in 2000. International sales are made primarily from our foreign sales subsidiaries in their respective countries and are denominated in United States dollars or the local currency of each country. These subsidiaries also incur most of their expenses in the local currency. Accordingly, all foreign subsidiaries use the local currency as their functional currency.

    Our international business is subject to risks typical of an international business, including, but not limited to differing economic conditions, changes in political climate, differing tax structures, other regulations and restrictions, and foreign exchange rate volatility. Accordingly, our future results could be materially adversely impacted by changes in these or other factors.

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    Our exposure to foreign exchange rate fluctuations arises in part from inter-company accounts in which costs incurred in the United States are charged to our foreign sales subsidiaries. These inter-company accounts are typically denominated in United States dollars. We are also exposed to foreign exchange rate fluctuations as the financial results of foreign subsidiaries are translated into United States dollars in consolidation. As exchange rates vary, these results, when translated, may vary from expectations and adversely impact overall expected profitability. The realized effect of foreign exchange rate fluctuations in 2000 resulted in a $162,000 gain.

    As of December 31, 2000, we had investments in foreign operations that are sensitive to foreign currency exchange rates, including non-functional currency denominated receivables and payables. The net amount that is exposed in foreign currency when subjected to a 10% change in the value of the functional currency versus the non-functional currency produces an immaterial change in our balance sheet as of December 31, 2000.

Item 8. Financial Statements and Supplementary Data

    Consolidated financial statements as of December 31, 2000 and 1999 and for each of the three years in the period ended December 31, 2000 and the reports of Independent Accountants are included on pages F-1 to F-28 of this Annual Report on Form 10-K.

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosures

    None.

PART III

Item 10. Directors and Executive Officers of the Registrant

    Information with respect to executive officers of the Registrant required by Item 401(b) of Regulation S-K is presented at the end of Part I of this Form 10-K. Information regarding Directors of the Registrant required by Item 401 of Regulation S-K and information regarding Directors and Executive Officers of Registrant required by Item 405 of Regulation S-K will be presented under the caption "Election of Directors" in the definitive Proxy Statement for the Company's 2001 Annual Meeting of Shareholders, and is incorporated herein by reference.

Item 11. Executive Compensation

    The information required by Item 402 of Regulation S-K will be presented under the captions "Election of Directors" and "Executive Compensation" in the definitive Proxy Statement for the Company's 2001 Annual Meeting of Shareholders, and is incorporated herein by reference.

Item 12. Security Ownership of Certain Beneficial Owners and Management

    The information required by Item 403 of Regulation S-K will be presented under the caption "Principal Shareholders" in the definitive Proxy Statement for the Company's 2001 Annual Meeting of Shareholders, and is incorporated herein by reference.

Item 13. Certain Relationships and Related Transactions

    The information required by Item 404 of Regulation S-K will be presented under the caption "Transactions with Executive Officers and Directors" in the definitive Proxy Statement for the Company's 2001 Annual Meeting of Shareholders, and is incorporated herein by reference.

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PART IV

Item 14. Exhibits, Financial Statement Schedule, and Reports on Form 8-K

a

The following Consolidated Financial Statements, Financial Statement Schedule and Exhibits are filed as part of this Annual Report on Form 10-K as listed on page F-1 of this document.

b

Reports on Form 8-K

None.

c

Exhibits

The following exhibits are included as part of this Annual Report on Form 10-K and incorporated herein by this reference:

31

32

33

34

*

Management contract or compensatory plan or arrangement.

35

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
AND CONSOLIDATED FINANCIAL STATEMENT SCHEDULE

F-1

INDEPENDENT AUDITORS' REPORT

To the Stockholders and Board of Directors of
3D Systems Corporation
Valencia, California

    We have audited the accompanying consolidated balance sheet of 3D Systems Corporation and its subsidiaries (the "Company") as of December 31, 2000, and the related consolidated statements of operations, comprehensive income (loss), stockholders' equity, and cash flows for the year then ended. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audit.

    We conducted our audit in accordance with auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion.

    In our opinion, such 2000 consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2000, and the results of its operations and its cash flows for the year then ended in conformity with accounting principles generally accepted in the United States of America.

/s/ DELOITTE & TOUCHE LLP
Deloitte & Touche LLP

Los Angeles, California
March 5, 2001

F-2

REPORT OF INDEPENDENT ACCOUNTANTS

To the Stockholders and Board of Directors
3D Systems Corporation

    In our opinion, the consolidated balance sheet as of December 31, 1999 and the related consolidated statements of operations, stockholders' equity, cash flows and comprehensive income for each of the two years in the period ended December 31, 1999 (appearing on pages F-4 through F-25 of the 3D Systems Corporation 2000 Annual Report to Shareholders which has been incorporated by reference in this Form 10-K) present fairly, in all material respects, the financial position, results of operations and cash flows of 3D Systems Corporation and its subsidiaries at December 31, 1999 and for each of the two years in the period ended December 31, 1999, in conformity with accounting principles generally accepted in the United States of America. These financial statements are the responsibility of the Company's management; our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits of these statements in accordance with auditing standards generally accepted in the United States of America, which require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. We have not audited the consolidated financial statements of 3D Systems Corporation for any period subsequent to December 31, 1999.

PricewaterhouseCoopers LLP

Woodland Hills, California
February 14, 2000

F-3

3D SYSTEMS CORPORATION
Consolidated Balance Sheets
At December 31, 2000 and 1999
(in thousands, except per share amounts)

See accompanying notes to consolidated financial statements.

F-4

3D SYSTEMS CORPORATION
Consolidated Statements of Operations
Years ended December 31, 2000, 1999 and 1998
(in thousands, except per share amounts)

See accompanying notes to consolidated financial statements.

F-5

3D SYSTEMS CORPORATION
Consolidated Statements of Stockholders' Equity
Years ended December 31, 2000, 1999 and 1998
(in thousands)