Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * KOECK HERBERT	2. Date of Event Requiring Statement (MM/DD/YYYY) 1/14/2019	3. Issuer Name and Ticker or Trading Symbol 3D SYSTEMS CORP [DDD]
(Last)        (First)        (Middle) 333 THREE D SYSTEMS CIRCLE	4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                            _____ 10% Owner ___ X ___ Officer (give title below)          _____ Other (specify below) EVP, Global Go To Market /
(Street) ROCK HILL, SC 29730        (City)              (State)              (Zip)	5. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _ X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	35689	D
Common Stock	39471   (1)	D

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Performance Based Restricted Stock Units	(2)	(2)	Common Stock	15000   (2)	(2)	D
Performance Based Restricted Stock Units	(3)	(3)	Common Stock	15000   (3)	(3)	D
Performance Based Stock Options (Right to Buy)	(4)	9/6/2026	Common Stock	70000   (4)	$15.75	D
Performance Based Stock Options (Right to Buy)	(5)	9/6/2026	Common Stock	70000   (5)	$15.75	D

Explanation of Responses:
(1)	The Reporting Person has been awarded 39,471 restricted stock units under the Issuer's 2015 Incentive Plan. These units will convert into an equal number of common stock shares upon vesting. 11,403 restricted stock units vest on August 15, 2019; 16,666 restricted stock units vest on September 6, 2019; and 11,402 restricted stock units vest on August 15, 2020.
(2)	The Reporting Person has been awarded 15,000 restricted stock units under the Issuer's 2015 Incentive Plan. These restricted stock units convert into an equal number of common stock shares upon vesting. These restricted stock units vest, if at all, on the later date that is six months after the date of grant and the date that the closing price of a share of the common stock on each trading day during the immediately prior ninety consecutive calendar days is at least $30.
(3)	The Reporting Person has been awarded 15,000 restricted stock units under the Issuer's 2015 Incentive Plan. These restricted stock units convert into an equal number of common stock shares upon vesting. These restricted stock units vest, if at all, on the later date that is six months after the date of grant and the date that the closing price of a share of the common stock on each trading day during the immediately prior ninety consecutive calendar days is at least $40.
(4)	The Reporting Person has been awarded 70,000 options under the Issuer's 2015 Incentive Plan. These options to purchase the shares of common stock at an exercise price equal to the closing price of the common stock on September 6, 2016 are exercisable, if at all, on the later of the date that is six months after the date of grant and the date that the closing price of a share of the common stock on each of the trading days during the immediately prior ninety consecutive calendar days is at least $30.
(5)	The Reporting Person has been awarded 70,000 options under the Issuer's 2015 Incentive Plan. These options to purchase the shares of common stock at an exercise price equal to the closing price of the common stock on September 6, 2016 are exercisable, if at all, on the later of the date that is six months after the date of grant and the date that the closing price of a share of the common stock on each of the trading days during the immediately prior ninety consecutive calendar days is at least $40.

Remarks: Exhibit 24 - Power of Attorney

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
KOECK HERBERT 333 THREE D SYSTEMS CIRCLE ROCK HILL, SC 29730			EVP, Global Go To Market

Signatures
/s/ Andrew M. Johnson, Attorney-in_Fact		1/14/2019
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.