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Attendees <br>
-------------- <br>
Martin Hardwick, STEP Tools, USA <br>
David Loffredo, STEP Tools, USA <br>
Vincent Marchini, Ameritech, USA <br>
Mikael Hedlind, KTH, Sweden <br>
Alain Brail, Airbus (retired), France <br>
David Odendahl, Boeing, USA <br>
Sid Venkatesh, Boeing USA <br>
Leon Xu, Boeing, USA<br>
Bengt Olsson, Sandvik, Sweden <br>
Bob Erickson, Pratt & Whitney, USA<b><br>
</b><br>
Apologies for Absence <br>
------------------------------- <br>
Magnus Lundgren, KTH, Sweden <br>
Arnaud KREMER, Ecole Nationale Supérieure d'Arts et Métiers, France
<br>
Tom Scotton, CCAT, USA <br>
Aydin Nassehi, University of Bath, UK<br>
Fred Proctor, NIST, USA <br>
<br>
1. We continued our discussion on how to define the control
algorithm for machine kinematics data exchange between AP-242 and
AP-238. ISO 841 has a lot of useful definitions but not enough for
our purposes. It was pointed out that no algorithm is necessary if
we limit ourselves to the types of machines currently included in
ST-Machine because they can be determined from the axis names of the
kinematic links in the data. Therefore, it was decided to table the
kinematic algorithm issue until we have examples of machines that
cannot be uniquely determined in this way.<br>
<br>
2. We did a walkthru of the demo scenario documentation produced by
KTH. <br>
<br>
<a class="moz-txt-link-freetext"
href="ftp://ftp.steptools.com/private/Stockholm2/STEP_manufacturing_demo_scenario_14_June_2012.pdf">ftp://ftp.steptools.com/private/Stockholm2/STEP_manufacturing_demo_scenario_14_June_2012.pdf</a><br>
<br>
The demonstration is ambitious but seems to be within our reach. A
questions was raised about the necessary inputs for the NIST HTM
evaluation engine. We assumed that the inputs will be the the
position of each kinematic link in machine space at the point to be
evaluated but this needs to be confirmed.<br>
<br>
We discussed if the demonstration should be applied to a new part or
one of the previously demonstrated parts such as Boxy, the Impeller
or the CDS part. This discussion will continue in the next telecon.<br>
<br>
3. We discussed the logistics of the meeting.<br>
<br>
STEP-Manufacturing will meet for all 5 days of the STEP meeting.
Industry presentations will be given on Wednesday and manufacturing
demonstrations will be given at KTH on Thursday. We expect to have
a full day of technical meetings on Friday so visitors from the USA
should not plan to leave until Saturday. <br>
<br>
The registration site for the meeting is now open at:<br>
<pre wrap=""><big><big><a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.sis.se/sc4">http://www.sis.se/sc4</a></big></big></pre>
We recommend that the STEP-Manufacturing team members select the
Hotel Malmen Scandic which is close to the SC4 meeting site and the
Metro. <br>
<br>
The next telecon will be held on Wednesday March 7th. A recording of
this meeting is at the following ftp site<br>
<br>
<a class="moz-txt-link-freetext" href="ftp://ftp.steptools.com/private/Stockholm2/stepmanuf_telecon_20120222.wmv">ftp://ftp.steptools.com/private/Stockholm2/stepmanuf_telecon_20120222.wmv</a><br>
<br>
Action Items:<br>
1. All to consider what type of part should be used for the KTH
demonstration.<br>
2. Mikael Hedlind to develop a procedure for selecting a kinematic
algorithm from a set of kinematic links.<br>
3. NIST to clarify the inputs required for the HTM evaluation.<br>
<br>
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