Exhibit 32.2

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CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

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This certification is provided pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and accompanies the Annual Report on Form 10-K (the “Form 10-K”) for the year ended December 31, 201 7 of 3D Systems Corporation (the “Issuer”).

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I, John N. McMullen, the Executive Vice President and Chief Financial Officer (principal financial and accounting officer) of the Issuer, certify that, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge:

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| (i) | the Form 10-K fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and

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| (ii) | the information contained in the Form 10-K fairly presents, in all material respects, the financial condition and results of operations of the Issuer.

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Date: March 14, 2018
/s/ John N. McMullen
Name: John N. McMullen
(principal financial and accounting officer)

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