3D SYSTEMS CORP — Director's Dealing 2010

May 4, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3D SYSTEMS CORP (TDSC)
CIK: 0000910638
Period of Report: 2010-05-03

Reporting Person: HULL CHARLES W (Director, EVP, Chief Technical Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-05-03	Common Stock	S	200	$15.22	Disposed	422805	Indirect
2010-05-03	Common Stock	S	100	$15.265	Disposed	422705	Indirect
2010-05-03	Common Stock	S	100	$15.31	Disposed	422605	Indirect
2010-05-03	Common Stock	S	100	$15.32	Disposed	422505	Indirect
2010-05-03	Common Stock	S	100	$15.325	Disposed	422405	Indirect
2010-05-03	Common Stock	S	100	$15.34	Disposed	422305	Indirect
2010-05-03	Common Stock	S	100	$15.39	Disposed	422205	Indirect
2010-05-03	Common Stock	S	400	$15.40	Disposed	421805	Indirect
2010-05-03	Common Stock	S	200	$15.43	Disposed	421605	Indirect
2010-05-03	Common Stock	S	300	$15.44	Disposed	421305	Indirect
2010-05-03	Common Stock	S	400	$15.45	Disposed	420905	Indirect
2010-05-03	Common Stock	S	500	$15.46	Disposed	420405	Indirect
2010-05-03	Common Stock	S	100	$15.47	Disposed	420305	Indirect
2010-05-03	Common Stock	S	100	$15.475	Disposed	420205	Indirect
2010-05-03	Common Stock	S	80	$15.48	Disposed	420125	Indirect
2010-05-03	Common Stock	S	100	$15.49	Disposed	420025	Indirect
2010-05-03	Common Stock	S	20	$15.53	Disposed	420005	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5500	Direct

Footnotes

F1: Automatic disposition of shares pursuant to Rule 10b5-1 Sales Plan.

F2: By the Charles William Hull and Charlene Antoinette Hull 1992 Revocable Living Trust for which the Reporting Person serves as trustee.