Item 7.01. Regulation FD Disclosure.

Pursuant to Regulation FD, the registrant hereby furnishes the information contained in the presentation materials attached as Exhibit 99.2 to this Current Report on Form 8-K, which information is incorporated into this Item 7.01 by this reference.

The registrant will broadcast the presentation live on the Internet at the registrant's Investor Relations web site at www.3dsystems.com/ir at 11:00 a.m. Eastern Time on Thursday, October 1, 2009.

Item 8.01. Other Events.

On October 1, 2009, the registrant completed a non-material acquisition of the assets and certain of the liabilities of Acu-Cast Technologies, LLC, a provider of rapid prototyping and manufacturing services that offers precision parts made on a wide range of traditional and additive manufacturing systems and a variety of finishing, molding and casting capabilities. Concurrently, the registrant announced the launch of 3Dproparts™, a rapid prototyping and manufacturing parts service. The registrant expects its 3Dproparts™ service to bring together a wide range of production and additive grade materials and the latest additive and traditional manufacturing systems to enable it to deliver to its customers a broad range of precision plastic and metal parts and assemblies.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Press Release dated October 1, 2009 regarding acquisition of Acu-Cast assets

99.2 Webcast slides dated October 1, 2009

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