Exhibit 32.1

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


     In  connection  with  the  annual  report  of  Cimetrix  Incorporated  (the
"Company") on Form 10-K for the year ended  December 31, 2004,  Robert H. Reback
hereby  certifies,  pursuant to 18 U.S.C.  Section 1350, as adopted  pursuant to
Section  906 of the  Sarbanes  - Oxley  Act of  2002,  that  to the  best of his
knowledge:

1.   The annual report fully complies with the  requirements of Section 13(a) of
     the Securities Exchange Act of 1934; and

2.   The  information  contained in the annual  report fairly  presents,  in all
     material respects, the financial condition and results of operations of the
     Company.


March 30, 2005                           /s/  Robert H. Reback
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   (Date)                                Robert H. Reback
                                         President (Principal Executive Officer)