3D SYSTEMS CORP — Director's Dealing 2011

May 2, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3D SYSTEMS CORP (TDSC)
CIK: 0000910638
Period of Report: 2011-04-29

Reporting Person: LOEWENBAUM G WALTER II (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-04-29	Common Stock	J	10000	$0.00	Acquired	142147	Indirect
2011-04-29	Common Stock	J	10000	$0.00	Disposed	698924	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	110847	Indirect
Common Stock	11093	Indirect
Common Stock	33509	Indirect
Common Stock	19295	Indirect
Common Stock	21824	Indirect
Common Stock	21855	Indirect
Common Stock	50057	Indirect
Common Stock	181526	Indirect
Common Stock	181525	Indirect

Footnotes

F1: Mr. Loewenbaum transferred 10,000 shares from his direct holdings to the Loewenbaum 1992 Trust. This did not change his total beneficial ownership of the transaction date.

F2: The Reporting Person disclaims beneficial ownership of these securities as well as any pecuniary interest therein.

F3: Mr. and Mrs. Loewenbaum serve as Trustees.

F4: Mr. Loewenbaum serves as Trustee.

F5: Mr. and Mrs. Loewenbaum are the general partners.

F6: Mrs. Loewenbaum serves as trustee.