[step-manufacturing] Minutes of Renton #7

[Martin Hardwick]

  _Attendees_
Martin Hardwick, STEP Tools, USA
David Loffredo, STEP Tools, USA
Vincent Marchini, Ameritech, USA
Rich Morihara, Boeing, USA
Bengt Olsson, Sandvik, Sweden
Alain Brail, AlBavis,  France
Fred Proctor, NIST, USA
Mikael Hedlind, KTH, Sweden
Bob Erickson, Pratt & Whitney, USA
David Odendahl, Boeing, USA
Sid Venkatesh, Boeing, USA

_Apologies for Absence_
Leon Xu, Boeing, USA
Richard Zuray, Boeing, USA
Magnus Lundgren, KTH, Sweden
Larry Maggiano, Mitutoyo, USA
Wen Jiang, Boeing, USA
Fiona Zhao, NIST,/New Zealand

A brief demonstration of frame definition in the STEP-NC Explorer was 
shown. The next step is to enable movement of the workpiece in the 
fixture in response to measurements. An information model has been 
developed for 'fixture_usage' that allow both the origin of the fixture 
relative to the machine, and the origin of the setup relative to the 
fixture to be set. The model is being implemented in the STEP-NC 
Explorer and should be demonstrated next week. A suggestion was made 
that it should be possible to set the location of the fixture using the 
FARO arm. This will be further discussed at the Renton meeting.

The following schedule for completing the demonstration was discussed:

Week of September 15th         Frame definition operational (current)
Week of September 22nd        Workpieces that can move in the fixture - 
decide what needs to be measured for each setup - recommendations for 
feeds and speeds
Week of September 29th         Setup compensation - new STEP-NC with 
necessary faces machined in first setup -  correct feeds and speeds in 
the AP-238
Week of October 6th                Testing at Boeing
Week of October 13th              Demo

There is an issue in the second setup because one of the three faces 
machined in the first setup is at the bottom of the part where it cannot 
be measured.  KTH will be asked to produce a new version of Boxy that 
machines 5 faces (the top and part of the four sides) in the first setup.

The part will be machined in aluminum.  At NIST it was machined in steel 
so Boeing will compute new speeds and feeds.

The next call will be at the regular times on Wednesday September 22. A 
meeting recording of this call is at the ftp below.
ftp://www.steptools.com/private/Renton/stepmanuf_telecon_20100915.wmv

Apologies for the draft of the minutes that was broadcast by mistake.

Martin Hardwick
Team Leader

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