[step-manufacturing] Minutes of January 15th conference call

[Stroud Ian Anthony]

Dear Martin,
Thank you for the minutes of the meeting.  I would have liked to attend especially for the AP242 stuff, but my computer refused to let me use it at the last minute.

Please thank the AP242 for their willingness to cooperate and thanks to everyone for ignoring technical advances and possibilities and preserving dinosaurs like AM from facetted models.  The reason for using facets was because of the historical divergence of solid representations and came from the advances in standalone graphics.  The choice of facets as communication has plagued users for decades now, can we PLEASE stop using them and move out of the technological stone age.  There have been other developments, too.  When STL was defined there was no standardised solid data exchange representation.  Now we have STEP, you may have heard of it, to communicate exact models.  Also, reliable commercial modelling kernels exist to do exact slicing if the control developers don't want to do that themselves.  We can move away from facetted models and free the users from the burden of having to defined AM technology related parameters which they don't necessarily understand and locking service providers to user-defined data not necessarily related to the AM technology on offer.  We do not need to compete with AMF, we don't need to go down the graphics format route.  ISO 14649 Part 17 is a move back to sense.  I will be happy to participate in conference calls with AP242 people and AMF people, providing my laptop doesn't go on strike again.  Please, at least, consider the short list of technological reasons for Part 17 which I sent round last time.  I can expand on that with pleasure if you would like me to.

Best regards,

Ian

________________________________________
From: step-manufacturing [step-manufacturing-bounces at steptools.com] on behalf of Martin Hardwick [hardwick at steptools.com]
Sent: 20 January 2014 04:42
To: step-manufacturing at steptools.com
Subject: [step-manufacturing] Minutes of January 15th conference call

Attendees
--------------
Martin Hardwick, STEP Tools, USA
David Loffredo, STEP Tools, USA
Magnus Lundgren, KTH, Sweden
Yujiang Li, KTH, Sweden
Mikael Hedlind, Scania, Sweden
Bengt Olsson, Sandvik, Sweden
Mike Restall, Sandvik, USA
Larry Maggiano, Mitutoyo, USA
David Odendahl, Boeing, USA
Leon Xu, Boeing, USA
Fred Proctor, NIST, USA
Vincent Marchetti, Ameritech, USA
Amit Vyas, Spiritaero, USA
Robert Lipman, NIST, USA
Thomas Raun, ISCAR, USA
Doron Cohen, ISCAR, Israel
Yin Lampard Zhang, University of Auckland, New Zealand
Fiona Zhao, McGill University, Canada
Alain Brail, Airbus (retired), France
Laurent Lalliard, CETIM, France

We think the Sandvik machining process is using tools that are too long.
The process has now been adjusted and a new version of the data has been
posted by STEP Tools
ftp://www.steptools.com/private/CAM_exchange/Cycle_2/v15_HARDMOLDY.zip

Boeing has made a new version of the data with roughing in-process
models for the male and female parts. We discussed how to define
operations for these parts. The tool paths shown in the in-process
models are only general guidelines and do not need to be reproduced
exactly. We will discuss how to define these requirements in more-detail
at the workshop.
ftp://www.steptools.com/private/CAM_exchange/Cycle_2/v1_HARDMOLDY2.zip

The latest version of the STEP-NC Explorer is not showing the ISO 13399
tool information for the Iscar tools. STEP Tools will fix this bug.
Sandvik will prepare ISO 1399 data to describe its tooling assemblies.

There was a conference call on the STEP-NC additive machining model with
the AP242 team and the ISO team defining the AMF. The plan is to enhance
the facet model in the second edition of AP242 so that it can support
normals similar to the ones defined in the AMF.

A recording of the call is on the ftp site.
ftp://www.steptools.com/private/CAM_exchange/Cycle_2/stepmanuf_telecon_20140115.wmv

The next conference call will be at the regular times on Wednesday
January 22nd and will continue to be held on a weekly schedule until the
Feb 13 and 14 workshop.
ftp://www.steptools.com/private/CAM_exchange/Cycle_2/ARC_OMAC_2014.pdf

Action Items
------------------
1. Boeing to machine the profile and pocketing operations using the v15
Sandvik process
2. STEP Tools to enhance v10 of ST-Machine to eliminate a load-race bug
that some users are experiencing, and to restore the v9 ISO13399 tool
display functionality
3. Sandvik to create ISO 13399 data for its tool assemblies
4. David Odendahl to prepare  a version of the in-process models for the
male and female roughing that use a better display color.
5. STEP Tools to port the STEP-NC export for Mastercam X6 to Mastercam X7

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