NEWS RELEASE

                                                           FOR IMMEDIATE RELEASE

CONTACT:

Mary E. Woods
Investor Relations
805/295.5600, Ext. 2508


                    3D SYSTEMS ELECTS NEW DIRECTOR TO BOARD


     VALENCIA, Calif., Sept. 22, 1998--3D Systems Corporation (Nasdaq NMS: TDSC)
today announced the election of Ian L. White-Thomson to its board of directors.

     Mr.  White-Thomson,  age 62, is  chairman,  president  and chief  executive
officer of U.S.  Borax Inc.,  the leading  producer and  supplier of  industrial
borates. U.S. Borax is wholly owned by Rio Tinto plc, the world's largest mining
company.

     Mr.  White-Thomson  also  serves as a director of Oryx  Energy  Company,  a
company traded on the New York Stock  Exchange,  as a director of KCET Community
Television  of Southern  California,  and as a director of the  National  Mining
Association  and  chairman  of  its  finance  committee.   He  was  selected  as
Manufactu
rer of the Year in 1997 by the California Manufacturers' Association.

     A graduate  of Oxford  University,  England,  Mr.  White-Thomson  currently
resides with his wife in Southern California.

     3D Systems  manufacturers  rapid  product  development  systems that enable
users to move from concept models to finished  parts faster,  at lower cost, and
at higher quality than traditional  methods.  3D Systems'  equipment  fabricates
solid  objects  using  digital  input  from   CAD/CAM/CAE   computer   systems,
substantially  reducing  the time and costs of bringing  new products to market.
Major applications include concept modeling, rapid prototyping and rapid tooling
for  products  in a wide range of  industries  worldwide  including  automotive,
aerospace, medical, electronic and consumer products.

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     For current  investor  information,  please  call 3D  Systems'  shareholder
communications service at 800-757-1799.