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<u>Attendees</u><br>
Martin Hardwick, STEP Tools, USA <br>
David Loffredo, STEP Tools, USA <br>
Vincent Marchini, Ameritech, USA<br>
Rich Morihara, Boeing, USA<br>
Bengt Olsson, Sandvik, Sweden<br>
Alain Brail, AlBavis, France<br>
<br>
<u>Apologies for Absence</u><br>
Fred Proctor, NIST, USA <br>
Fiona Zhao, NIST,/New Zealand<br>
David Odendahl, Boeing, USA <br>
Mikael Hedlind, KTH, Sweden<br>
Sid Venkatesh, Boeing, USA<br>
Leon Xu, Boeing, USA<br>
Magnus Lundgren, KTH, Sweden<br>
Bob Erickson, Pratt & Whitney, USA<br>
Larry Maggiano, Mitutoyo, USA<br>
<br>
We discussed how to process the STEP data produced by the FARO arm.
The data is organized into a set of
manifold_surface_shape_representations with one representation per
measured surface. In the demonstration we will be making one STEP
file for each setup and each file will contain six
manifold_surface_shape_representations. The first three surfaces
will measure a machine reference point. The second three surfaces
will measure a corner on the part. The first three surfaces are
necessary to keep the coordinate system constant when the arm is
dismounted and remounted between setups.<br>
<br>
<a class="moz-txt-link-freetext" href="ftp://www.steptools.com/private/Renton/Boxy_sample_2_-_setup_1.stp">ftp://www.steptools.com/private/Renton/Boxy_sample_2_-_setup_1.stp</a><br>
<br>
We discussed how to manage the coordinate system changes. Algorithms
can be added to the STEP-NC Explorer to make the adjustments between
setups or some analysis software on the arm can be used to make the
adjustment and keep the coordinate system constant. Making the
adjustment in the Explorer has the advantage of allowing the data to
be captured in the STEP-NC data file.<br>
<br>
We discussed the closed loop machining model. The model continues to
change with a new attribute for the machine reference point being
added during the conference call. This becoming a source for concern
because the date of the demonstration is rapidly approaching. In
discussions after the call it was decided that ISO 14649 style
documentation should be written for the model and that if it
remained stable during this process then it will be ready for
mapping into AP-238.<br>
<br>
<a class="moz-txt-link-freetext" href="ftp://www.steptools.com/private/Renton/Closed_loop_model.txt">ftp://www.steptools.com/private/Renton/Closed_loop_model.txt</a><br>
<br>
The next call will be at the regular times on Wednesday September 1.<br>
<br>
The video recording for this weeks call is below.<br>
<a class="moz-txt-link-freetext"
href="ftp://www.steptools.com/private/Renton/stepmanuf_telecon_20100818.wmv">ftp://www.steptools.com/private/Renton/stepmanuf_telecon_20100825.wmv</a><br>
<br>
Martin Hardwick<br>
Team Leader STEP-Manufacturing<br>
<br>
Action Items<br>
----------------<br>
Martin Hardwick to develop ISO 14649 style documentation for the
closed loop model.<br>
Rich Morihara to investigate using the FARO arm analysis software to
keep the coordinate system constant
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