EXHIBIT 10.3
                              NON-COMPETITION AGREEMENT

    THIS NON-COMPETITION AGREEMENT (this "Agreement") is made as of the __th
day of September, 1996, by and among 3D SYSTEMS, INC., a California corporation
("3D") and Wayne O. Duescher ("Covenantor").

                                       RECITALS

    3D is purchasing from Keltool all of the assets (the "Assets") of Keltool,
together with the goodwill of Keltool (collectively, the "Business"), located
at 561 Shoreview Park Road, St. Paul, Minnesota  55126, pursuant to that certain
Asset Purchase Agreement dated August 30, 1996 (the "Purchase Agreement"). 
Covenantor has, in consideration of 3D entering into the Purchase Agreement,
which Purchase Agreement would not have been entered into by 3D if Covenantor
was unwilling to execute this Agreement, agreed to execute this Agreement and
perform his obligations hereunder.

                                      AGREEMENT

    NOW, THEREFORE, in reliance on the foregoing facts and in consideration of
the mutual covenants and agreements contained herein, the parties hereto agree
as follows:

    1.   NON-COMPETITION.  During the term hereof Covenantor agrees that, 
throughout the State of Minnesota, any other state or territory of the United 
States, or anywhere else in the World, he shall not, without the prior 
written consent of 3D (which consent may be withheld by 3D in the exercise of 
its sole and absolute discretion), directly or indirectly, own, manage, 
operate, join, control, finance or participate in the ownership, management, 
operation, control or financing of, or be connected as an officer, director, 
employee, principal, agent, representative, consultant, investor, owner, 
partner, stockholder (except as a holder of less than 2% of the issued and 
outstanding voting stock of a publicly held corporation), member, manager 
joint venturer or otherwise permit his name to be used by or in connection 
with, or lease, sell, or permit to use any real property or interest therein 
owned by him to, any business which is in any manner competitive with the 
Business, as conducted during the one year period prior to the date hereof; 
provided however, that Covenantor may continue to conduct the business of 
Keltech Engineering as currently conducted (the "Keltech Business").  It is 
agreed that the Keltech Business as currently conducted does not involve the 
manufacture of, sale of, or provision of services to enable or facilitate the 
manufacture or creation of, any hard tools or molds for hard tools.  In 
connection with and in addition to the foregoing, Covenantor agrees during 
the term hereof not to:  (i) hire or offer employment to any employee of 3D 
or any of its affiliates unless 3D first terminates the employment of such 
employee (except with respect to Matt Mullenburg, who Conventor may hire or 
offer employment to upon the earlier of (x) the relocation of the Assets



and Business of Keltool to California, or (y) after six months after the 
Closing of the sale pursuant to the Purchase Agreement); or (ii) solicit, 
divert, or take away from 3D and its affiliates the business of any 
individual, corporation, trust, estate, partnership, joint venture, 
association, limited liability company, governmental bureau or other entity 
of whatsoever kind or nature ("Person") who or which at the time of the 
Closing or at any time within the three years prior to such time or at any 
time thereafter, was a customer of the Business.

    2.   CONFIDENTIAL INFORMATION.  Covenantor agrees that he will not, during
the term of this Agreement or at any time thereafter, use or disclose to any
Person other than 3D or its affiliates or their respective employees acting on
behalf of 3D or its affiliates, any customer list, potential customer list,
records, techniques, business secrets, trade secrets or any other information
with respect to the Business not available generally in the rapid prototype
tooling or moldmaking industries and not known to competitors of 3D or its
affiliates or other third parties unaffiliated with 3D or its affiliates
("Confidential Information") except as may be required by order of court or
other governmental agency, provided that Covenantor shall have first provided 
3D with notice of such order and an opportunity to object.

    3.   CONSIDERATION.  As consideration for the covenants and agreements of 
Covenantor contained herein, 3D has agreed to execute the Purchase Agreement 
and the exhibits thereto, and to perform its obligations thereunder.  The 
parties hereto agree that $250,000 of the Purchase Price (as that term is 
defined in the Purchase Agreement) has been allocated to the covenants and 
agreements of Covenantor contained herein.  Covenantor hereby acknowledges 
that 3D has been materially induced to enter into the Purchase Agreement and 
to make the payments provided for thereunder by and in reliance on 
Covenantor's execution of this Agreement, such execution of this Agreement 
being a condition precedent to 3D's obligation to consummate the Purchase 
Agreement, and agreement to comply with the covenants and agreements 
contained therein.

    4.   TERM AND TERMINATION.  The term of this Agreement shall commence on
the date hereof and shall terminate on that date which is five (5) years
following the date of this Agreement.

    5.   INJUNCTIVE RELIEF AND OTHER REMEDIES UPON BREACH BY COVENANTOR. 
Covenantor acknowledges and agrees that (i) the provisions of this Agreement 
are reasonable and necessary to protect the legitimate interests of 3D, and 
(ii) in the event of any breach by Covenantor of any of Covenantor's 
covenants and agreements contained herein, 3D would encounter extreme 
difficulty in attempting to prove the actual amount of damages suffered by it 
as a result of such breach, 3D would not have an adequate remedy at law in 
such event and, therefore, in addition to any other remedy it may have at law 
or in equity in the event of any such breach, 3D shall be entitled to seek 
and receive specific performance and temporary, preliminary and permanent 
injunctive relief from violation of any of the provisions of this Agreement 
from any court of competent jurisdiction without the necessity of proving the 
amount of any actual damages to it resulting from such breach.

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    6.   MISCELLANEOUS.

         6.1  SUCCESSORS AND ASSIGNS.  This Agreement shall be binding upon 
and inure to the benefit of the parties hereto and their respective 
successors and assigns.  No party other than 3D may assign any of its rights, 
or delegate any of its duties or obligation, under this Agreement without the 
prior written consent of the other parties, and any such purported assignment 
or delegation shall be void AB INITIO.  Notwithstanding the foregoing, 3D, 
its affiliates, and its successors and assigns, may assign its rights and 
delegate its duties to any successor entity resulting from any liquidation, 
merger, consolidation, reorganization, or transfer of all or substantially 
all of the assets or stock of 3D or the Business of 3D.

         6.2  NOTICES.  All notices, demands and other communications 
(collectively, "Notices") given or made pursuant to this Agreement shall be 
in writing and shall be deemed to have been duly given if sent by registered 
or certified mail, return receipt requested, postage and fees prepaid, by 
overnight service with a nationally recognized "next day" delivery company 
such as Federal Express or United Parcel Service, by facsimile transmission 
(confirmation received), or otherwise actually delivered to the following 
addresses:

              (a)  if to 3D:

                   3D Systems, Inc.
                   26081 Avenue Hall
                   Valencia, California 91355
                   Attn: A. Sidney Alpert
                   Fax:  (805) 257-1200

              (b)  if to Covenantor:

                   Wayne O. Duescher
                   559 Shoreview Road
                   Shoreview, MN  55126

Any Notice shall be deemed duly given when received by the addressee thereof, 
provided that any Notice sent by registered or certified mail shall be deemed 
to have been duly given two business days from the date of deposit in the 
United States mails, unless sooner received and any notice sent by overnight 
service as provided above shall be deemed  to have been duly given the next 
business day from date of deposit with the service.  Any of the parties to 
this Agreement may from time to time change its address for receiving notices 
by giving written notice thereof in the manner set forth above.

         6.3  AMENDMENT; WAIVER.  No provision of this Agreement may be waived
unless in writing signed by all of the parties to this Agreement, and the waiver
of any one

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provision of this Agreement shall not be deemed to be a waiver of any other 
provision.  This Agreement may be amended only by a written agreement 
executed by all of the parties to this Agreement.

         6.4  GOVERNING LAW.  This Agreement shall be governed by and construed
both as to validity and performance and enforced in accordance with the laws of
the State of California without giving effect to the choice of law principles
thereof.

         6.5  COUNTERPARTS.  This Agreement may be executed in any number of
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.

         6.6  REMEDIES CUMULATIVE.  Each of the various rights, powers and
remedies shall be deemed to be cumulative with, and in addition to, all the
rights, powers and remedies which each party may have hereunder or under
applicable law relating hereto or to the subject matter hereof, and the exercise
or partial exercise of any such right, power or remedy shall constitute neither
an exclusive election thereof nor a waiver of any other such right, power or
remedy.

         6.7  HEADINGS.  The section and subsection headings contained in this
Agreement are included for convenience only and form no part of the agreement
between the parties.

         6.8  SEVERABILITY.  Whenever possible, each provision of this 
Agreement shall be interpreted in such a manner as to be effective and valid 
under applicable law, but if any provision of this Agreement shall be or 
become prohibited or invalid under applicable law, such provision shall be 
ineffective to the extent of such prohibition or invalidity without 
invalidating the remainder of such provision or the remaining provisions of 
this Agreement.

         6.9  EXPENSES.  Each party shall pay its own costs, expenses,
including without limitation, the fees and expenses of their respective counsel
and financial advisors.

         6.10 ENTIRE AGREEMENT.  This Agreement, including the other agreements
and schedules to be entered into in connection with the transactions
contemplated by the Purchase Agreement constitutes and embodies the entire
understanding and agreement of the parties hereto relating to the subject matter
hereof and there are no other agreements or understandings, written or oral, in
effect between the parties relating to such subject matter except as expressly
referred to herein.

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    IN WITNESS WHEREOF, the parties hereto have executed this Non-Competition
Agreement as an instrument under seal as of the day and year first set forth
above.

                                       ----------------------------
                                       WAYNE O. DUESCHER



                                       3D SYSTEMS, INC.
                                       a Delaware corporation


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                                       By:
                                       Its: