EXHIBIT 31.1

                  CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER
      PURSUANT TO RULE 13a - 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934,
                       AS AMENDED, AS ADOPTED PURSUANT TO
                  SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Robert H. Reback, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Cimetrix Incorporated.

2. Based on my  knowledge,  this  quarterly  report  does not contain any untrue
statement of a material fact or omit to state a material fact  necessary to make
the statements made, in light of the  circumstances  under which such statements
were made, not misleading with respect to the period covered by this report;

3.  Based  on my  knowledge,  the  financial  statements,  and  other  financial
information included in this report, fairly present in all material respects the
financial  condition,  results of operations and cash flows of the registrant as
of, and for, the periods presented in this report;

4.  The  registrant's  other  certifying  officer  and  I  are  responsible  for
establishing and maintaining  disclosure  controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

     a)  Designed  such  disclosure  controls  and  procedures,  or caused  such
     disclosure controls and procedures to be designed under our supervision, to
     ensure that material information relating to the registrant,  including its
     consolidated  subsidiaries,  is made  known to us by  others  within  those
     entities,  particularly  during the  period in which  this  report is being
     prepared;

     b) Evaluated the effectiveness of the registrant's  disclosure controls and
     procedures  and  presented  in  this  report  our  conclusions   about  the
     effectiveness of the disclosure  controls and procedures,  as of the end of
     the period covered by this report based on such evaluation; and

     c) Disclosed in this report any change in the registrant's internal control
     over  financial  reporting  that occurred  during the period covered by the
     registrants  most recent  fiscal  quarter (the  registrant's  fourth fiscal
     quarter in the case of an annual report) that has materially  affected,  or
     is  reasonably  likely to  materially  affect,  the  registrant's  internal
     control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed,  based on our
most recent  evaluation of internal  control over  financial  reporting,  to the
registrant's  auditors  and the audit  committee  of the  registrant's  board of
directors (or persons performing the equivalent functions):

     a) All significant  deficiencies  and material  weaknesses in the design or
     operation of internal control over financial reporting which are reasonably
     likely to adversely  affect the  registrant's  ability to record,  process,
     summarize and report financial information; and

     b) Any fraud,  whether or not material,  that involves  management or other
     employees who have a significant role in the registrant's  internal control
     over financial reporting.

Date: May 16, 2005

/s/ Robert H. Reback
President and Chief Executive Officer
(Principal Executive Officer)
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