3D SYSTEMS CORP — Director's Dealing 2010

May 18, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3D SYSTEMS CORP (TDSC)
CIK: 0000910638
Period of Report: 2010-05-18

Reporting Person: LOEWENBAUM G WALTER II (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-05-18	Common Stock	A	3000	—	Acquired	818444	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	251900	Indirect
Common Stock	102147	Indirect
Common Stock	110847	Indirect
Common Stock	11093	Indirect
Common Stock	33509	Indirect
Common Stock	49579	Indirect
Common Stock	21824	Indirect
Common Stock	23855	Indirect
Common Stock	79408	Indirect

Footnotes

F1: These shares were awarded to the Reporting Person pursuant to the 2004 Restricted Stock Plan for Non-Employee Directors, and the Reporting Person purchased these shares at par value, or $0.001 per share.

F2: Mr. Loewenbaum serves as Trustee. This is Mr. Loewenbaum's pension plan.

F3: The Reporting Person disclaims beneficial ownership of these securities except to the extent of any pecuniary interest therein.

F4: Mr. and Mrs. Loewenbaum serve as Trustees.

F5: Mr. Loewenbaum serves as Trustee.

F6: Mr. and Mrs. Loewenbaum are the general partners.