[step-manufacturing] Minutes of June 14 conference call and grand challenge discussion

[Martin Hardwick]

Attendees
--------------

Martin Hardwick, STEP Tools, USA
David Loffredo, STEP Tools, USA
Bengt Olsson, Sandvik, Sweden
Mikael Hedlind, Scania, Sweden
John Bijnens, KU Leuven, Belgium
Sid Venkatesh, Boeing, USA
Asa Trainer, ITI, USA
Katie Tilery-Merck, UILabs, USA
Liming Li, MIcro Encoder, USA
John Horst, NIST USA,
Ray Admire, Lockheed Martin, USA

We discussed the demonstration that will be given at the DMDII on July 
12th. An MTConnect adapter with a 4ms response has been installed on the 
Hyundai WIA XF6300. This adapter is able to build good digital twins, in 
real time, as shown by the following video.

http://www.steptools.com/blog/20170616_dmdii_tests/

The STEP-NC file used for dry run machining shown in the video is here: 
ftp://www.steptools.com/private/JWG15/DMDII/aluminium_boxy_with_probing_20170616.stpnc

An STL file made from the result of the twin simulation is here: 
ftp://www.steptools.com/private/JWG15/DMDII/210160616_dry_run.stl

We had a blue sky discussion on how to promote the results of the DMDII 
projects with a suggestion being made for a grand challenge to be issued 
for IMTS 2018 and JINTOF 2018. The following summarizes the discussion:

*_Build Anywhere Grand Challenge_*

We are planning a major initiative for  IMTS 2018 and JIMTOF 2018. The 
probable title will be the “Build Anywhere Grand Challenge” and it will 
use the results of the DMDII "Mind the Gap" (14-02-02) and "O3" 
(14-06-05) projects to enable inter-operable machining and measurement.

We will get endorsement from the standards groups in July, and by the 
aerospace industry in August. The sponsors will provide the models that 
are to be machined and help pay for the costs of promotion. 
Presentations to potential participants will take place in September, 
October and November with the first rehearsal taking place at NIST in 
January. After that there will be another three rehearsals at locations 
convenient for each of the participating standards groups (STEP, 
MTConnect and QIF). Finally, the IMTS show will take place from 
September 10th and 15th 2018 in Chicago, followed by the JIMTOF show 
from November 1st to 6th 2018 in Tokyo.

At the show, a new part will be released each day. Participating vendors 
will be asked to machine the part and validate that it meets the 
tolerances using on-machine and off-machine metrology. They will be 
asked to deliver a QIF report summarizing the results of the 
measurements and they will also be encouraged to explain why their 
solution might be faster, less costly, or more accurate than that of 
their competitors.

Participants will be given a STEP-NC file describing how to machine the 
part. They will be allowed to choose between many strategies to make the 
part including reading the STEP-NC file into a CAM system for post 
processing, and processing the file directly on the CNC using the 
technology developed by the DMDII projects.

Vendors will be required to demonstrate that they have met the AP242 
tolerances using on-machine or off-machine metrology. If they use 
on-machine metrology then they will be required to use MTConnect to 
report their measurements. In both cases they will be asked to produce a 
QIF report verifying their results.

The IMTS 2018 grand challenge will demonstrate “build anywhere” for 
piece parts.  A follow on grand challenge will demonstrate “build 
anywhere” for assemblies.



A recording of the conference call is at: 
ftp://www.steptools.com/private/JWG15/DMDII/WG15_STEP%20Manufacturing_20170614.mp4

The next conference call will be held at the regular times on Wednesday 
June 28th.

Martin Hardwick
Convener WG15 Digital Manufacturing

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