[step-manufacturing] Minutes of 7th conference call

[Martin Hardwick]

Attendees
---------------
Matthew Lloyd, CCAT
Martin Hardwick, STEP Tools, Inc.
Mikael Hedlind, KTH
Magnus Lundgren, KTH
Bengt Olsson, Sandvik
David Odendahl, Boeing
Larry Maggiano, Mitutoyo
Alain Brail, AlBavis
Sid Venkatesh, Boeing
Aydin Nassehi, University of Bath
Fred Proctor, NIST
Greg Posly, GDLS


Apologies for absence
--------------------------------
Gary Hargreaves, Mastercam
Xun Xu, University of Auckland
Ian Stroud, EPFL
Leon Xu, Boeing

CAD systems such as CATIA and Pro/Engineer have implemented 
extensions to their AP-203/AP-214 translators to include drawing 
presentation and annotation information from the 2nd edition of 
AP-203 and the third edition of AP-214.

STEP Tools has reviewed the schema extensions made to AP-203 and 
AP-214 and developed an ARM model that it believes should be added to 
AP-238 so that presentation and view information can be defined for 
STEP-NC workpieces.

ftp://ftp.steptools.com/private/Vancouver/presentation_arm.pdf

The corresponding AIM for this ARM is being computed and the STEP-NC 
Explorer will be updated so that it can read the new workpieces. STEP 
Tools will then work with Boeing to test some AP-203 e2 data exchanges.

The geometry models for Machine Tool models are large so STEP Tools 
has been working to make the geometry engine of the STEP-NC Explorer 
more efficient. The next machine tool to be animated will be a model 
of the DMU e70 used at the CCAT demonstration. A more comprehensive 
version of  STEP data for this machine has been made by CCAT and is 
available at:

ftp://ftp.steptools.com/private/Vancouver/Machine_tool_model/DMG_Model.STEP

We discussed the scenario for the next meeting. Boeing will make a 
master AP-238 model for the part, verify that it can be machined, and 
then publish the data so that it can be made by the partners. The six 
potential partners (NIST, CCAT, KTH, Sandvik, GDLS and U.Bath) will 
optimize the AP-238 data for their processes and then machine their 
own copies of the part. The part is symmetric so we will be able to 
check it at the meeting by fitting the male and female halves of all 
the partners together.

The part is a mold. Both three axis and five axis machining plans 
will be developed to give the partners flexibility. The basic 
dimensions are 6 inch by 6 inch. The part material will probably be 
aluminium but may be steel.

The "live" machining demonstration will be given at a Boeing facility 
in Renton. At the meeting there will be discussions of the lessons 
learned during this round of testing and of the goals for the next 
round. At the end of the day there will be a social event where we 
will travel by ferry to an island in the Puget sound. There will be 
demonstrations of dancing by Native Americans followed by a Salmon 
dinner cooked over an open fire. The next day will begin with a tour 
of the final assembly plant for the 737.  We will then move to a 
Mitutoyo facility in Kirkland where the part just made at Boeing and 
the parts made by the partners will be measured using optical 
scanning equipment.

ftp://ftp.steptools.com/private/Vancouver/Renton_2009_Logistics.doc

There will be no registration fee for the demonstrations at Boeing 
and Mitutoyo but all visitors must register. There will be an $80 fee 
for those who wish to participate in the social event. There will 
also be a second optional social event on Friday evening after the 
meeting at Mitutoyo. We recommend that those traveling to Canada for 
the SC4 meetings do not try to travel on Friday evening. The 
technical meetings will be held with the SC4 meeting in Parksville 
Canada. There is a registration fee required for the SC4 meeting. For 
more details see:

http://www.eccma.org/2009isosc4%20conf/iso-sc42009.html

We set the following dates/deadlines for the demonstration and meetings:

February 4th 	- Complete design of the mold part (AP-203 e2 model)
February 21st	- Complete and test 3 and 5 axis manufacturing plans 
for the part (AP-238 models)
March 4th	- Partners commit to participate in the demonstration
May 6th	- Partners complete machining and measurement of the part
May 14th	- First day of demonstration at Boeing
May 15th	- 737 tour and measurement demonstrations at Mitutoyo
May 18th	- SC4 Technical meetings begin in Parksville, Vancouver 
Island, BC, Canada
May 20th	- STEP-NC technical meetings at SC4 end.

The next conference call will be held on Wednesday February 4th at 
the usual times.

Action items
------------------
1.   David Odendahl to complete AP-203 and AP-238 models for the test part.
2.   Sid Venkatesh to prepare invitation and registration materials 
for the meeting.
3.   STEP Tools to extend STEP-NC Explorer to read AP-203 e2 / AP-214 
e3 workpieces.
4.   STEP Tools to prepare a machine tool simulation of the CCAT DMU e70.
5.   Partners to commit to participation in the demonstration by March 4th.