<SEC-DOCUMENT>0001209191-12-021990.txt : 20120404
<SEC-HEADER>0001209191-12-021990.hdr.sgml : 20120404
<ACCEPTANCE-DATETIME>20120404170458
ACCESSION NUMBER:		0001209191-12-021990
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20120403
FILED AS OF DATE:		20120404
DATE AS OF CHANGE:		20120404

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KOHRS DOUGLAS W
		CENTRAL INDEX KEY:			0001021425

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35435
		FILM NUMBER:		12742691

	MAIL ADDRESS:	
		STREET 1:		C/O KYPHON INC.
		STREET 2:		1221 CROSSMAN AVENUE
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94089

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Proto Labs Inc
		CENTRAL INDEX KEY:			0001443669
		STANDARD INDUSTRIAL CLASSIFICATION:	FABRICATED STRUCTURAL METAL PRODUCTS [3440]
		IRS NUMBER:				000000000

	BUSINESS ADDRESS:	
		STREET 1:		5540 Pioneer Creek
		CITY:			Maple Plain
		STATE:			MN
		ZIP:			55359
		BUSINESS PHONE:		763-479-7474

	MAIL ADDRESS:	
		STREET 1:		5540 Pioneer Creek
		CITY:			Maple Plain
		STATE:			MN
		ZIP:			55359
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0205</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2012-04-03</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001443669</issuerCik>
        <issuerName>Proto Labs Inc</issuerName>
        <issuerTradingSymbol>PRLB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001021425</rptOwnerCik>
            <rptOwnerName>KOHRS DOUGLAS W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5540 PIONEER CREEK DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MAPLE PLAIN</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55359</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Catherine M. Verschelden, Attorney-in-Fact for Douglas W. Kohrs</signatureName>
        <signatureDate>2012-04-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.3_419236
<SEQUENCE>2
<FILENAME>poa.txt
<DESCRIPTION>POA DOCUMENT
<TEXT>
POWER OF ATTORNEY

I, Douglas W. Kohrs, hereby authorize and designate each of John R. Judd,
William R. Langton, Edward E. Bolton, W. Morgan Burns, Mark D. Pihlstrom,
Catherine M. Verschelden, Julie M. Regnier and Lauren M. Graff signing singly,
as my true and lawful attorney in fact to:

(1) execute for and on my behalf, in my capacity as an officer and/or director
of Proto Labs, Inc. (the "Company"), Form ID or Forms 3, 4 and 5 in accordance
with Section 16(a) of the Securities Exchange Act of 1934 (the "Exchange Act")
and the rules and regulations promulgated thereunder and other forms or reports
on my behalf as may be required to file in connection with my ownership,
acquisition, or disposition of securities of the Company, including Form 144;

(2) do and perform any and all acts for and on my behalf that may be necessary
or desirable to complete and execute any such Form ID or Form 3, 4 or 5 and
timely file such form with the Securities and Exchange Commission, any stock
exchange or similar authority, and the National Association of Securities
Dealers; and

(3) take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney in fact, may be to my benefit,
in my best interest, or legally required of me, it being understood that the
statements executed by such attorney in fact on my behalf pursuant to this Power
of Attorney shall be in such form and shall contain such terms and conditions as
such attorney in fact may approve in such attorney in fact's discretion.

I hereby further grant to each such attorney in fact full power and authority to
do and perform any and every act and thing whatsoever requisite, necessary, or
proper to be done in the exercise of any of the rights and powers herein
granted, as fully to all intents and purposes as I might or could do if
personally present, with full power of substitution or revocation, hereby
ratifying and confirming all that such attorney in fact, or such attorney in
fact's substitute or substitutes, shall lawfully do or cause to be done by
virtue of this Power of Attorney and the rights and powers herein granted.  I
hereby acknowledge that the foregoing attorneys in fact, in serving in such
capacity at my request, are not assuming, nor is the Company assuming, any of my
responsibilities to comply with Section 16 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until I am no
longer required to file Form ID or Forms 3, 4 and 5 with respect to my holdings
of and transactions in securities issued by the Company, unless earlier revoked
by me in a signed writing delivered to the foregoing attorneys in fact.
Notwithstanding the foregoing, if any such attorney-in-fact hereafter ceases to
be at least one of the following: (i) an employee of the Company, (ii) a partner
of Faegre Baker Daniels LLP or (iii) an employee of Faegre Baker Daniels LLP,
then this Power of Attorney shall be automatically revoked solely as to such
individual, immediately upon such cessation, without any further action on my
part.

I hereby revoke all previous Powers of Attorney that have been granted by me in
connection with my reporting obligations, if any, under Section 16 of the
Exchange Act with respect to my holdings of and transactions in securities
issued by the Company.

IN WITNESS WHEREOF, I have caused this Power of Attorney to be duly executed as
of this 28th day of March, 2012.

/s/ Douglas W. Kohrs
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
