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<u>Attendees</u><br>
Martin Hardwick, STEP Tools, USA
<br>
David Loffredo, STEP Tools, USA
<br>
Fred Proctor, NIST, USA
<br>
Leon Xu, Boeing, USA
<br>
Mikael Hedlind, KTH, Sweden<br>
Magnus Lundgren, KTH, Sweden<br>
Fiona Zhao, NIST,/New Zealand<br>
Bob Erickson, Pratt & Whitney, USA<br>
David Odendahl, Boeing, USA
<br>
Bengt Olsson, Sandvik, Sweden
<small><br>
</small>Alain Brail, AlBavis, France
<small><br>
</small>Larry Maggiano, Mitutoyo, USA<br>
Anna Valente, ITIA-CNR, Italy<br>
Vincent Marchini, Ameritech, USA<br>
<br>
<u>Apologies for Absence</u><br>
Aydin Nassehi, U.Bath, UK<br>
Stephen Newman, U.Bath, UK<br>
Sid Venkatesh, Boeing, USA<br>
Chris Pfeifer CCAT, USA<br>
Ian Stroud, Switzerland<br>
<br>
We reviewed the latest version of seven setup Boxy. This version has
corrected speeds and feeds for the drilling workingsteps and a new
engraving operation for Al's Rod Shop. <br>
<br>
<a class="moz-txt-link-freetext"
href="ftp://ftp.steptools.com/private/NIST/Boxy_Part_3-Axis_Machining_7_Setups_v1.238">ftp://ftp.steptools.com/private/NIST/Boxy_Part_3-Axis_Machining_7_Setups_v3.238</a><br>
<br>
We discussed the tooling data and agreed to continue with the plan to
make AP-203 e2 models and ISO 13399 model to describe the tool
dimensions. Sandvik has prepared a slide showing the ISO 13399 standard
names for the parameters we discussed in previous telcons.<br>
<br>
<a class="moz-txt-link-freetext" href="ftp://ftp.steptools.com/private/NIST/tools/ISO_13399_cutting_tool_parameters.ppt">ftp://ftp.steptools.com/private/NIST/tools/ISO_13399_cutting_tool_parameters.ppt</a><br>
<br>
Some of the parameters represent minimums or maximums and it was
suggested that these should be shown in the AP-203 e2 data as +/-
tolerance values. Some of the parameters have names that will not be
immediately recognizable and it was suggested that links could be given
to reference pages explaining the parameters using STRL's (see below).<br>
<br>
We discussed how to further enhance the example data and the standard
so that a single AP-238 file can be a "one stop shop" for everything
the machine and operator need to know to make a part. NIST observed
that the initial stock dimensions are hard to find. STEP Tools
explained that the current STEP-NC Explorer assumes that the stock
dimensions can be found by querying the initial stock of the main
workplan, but there is no such item in Boxy. Therefore, the explorer
will be updated so that any workpiece can be queried for its
dimensions. <br>
<br>
NIST also suggested that there should be programs available to make the
stock from other kinds of workpieces. A future version of the STEP-NC
Explorer might be able to generate such tool paths or web site could be
provided with STRL links to programs that convert popular starting
items into the required stock.<br>
<br>
We discussed how to demonstrate STRL's at the June demonstration and
came up with the following ideas.<br>
<br>
1. Line Balancing. Create a web site of operations and machines and use
a spreadsheet to balance the operations between machines to maximize
speed or minimize cost.<br>
2. Ancillary Documentation. Use some STRL's as URL's for web pages
explaining attributes of the data such as the tooling parameters in
more detail.<br>
3. Distributed Simulation. Link a series of operations and simulate the
machining of a part as it moves between the machines.<br>
4. Toolpath generation. Send a query to a server describing an
operation so that it can generate appropriate tool paths.<br>
<br>
We reviewed the latest version of the Closed Loop machining model. It
was suggested that the toolpath_compensation model should have subtypes
describing how to compensate bottom, side and bottom and side milling
operations. KTH reminded us that about the Trajectory compensation
operation that they developed for the CCAT meeting. The compensation
operations will be further considered in future telcons.<br>
<br>
<a class="moz-txt-link-freetext" href="ftp://ftp.steptools.com/private/NIST/Tool-path_trajectory_compensation.pdf">ftp://ftp.steptools.com/private/NIST/Tool-path_trajectory_compensation.pdf</a><br>
<a class="moz-txt-link-freetext" href="ftp://ftp.steptools.com/private/NIST/Closed_loop_entities.pdf">ftp://ftp.steptools.com/private/NIST/Closed_loop_entities.pdf</a><br>
<br>
The next call will be at the regular times on <b>Wednesday May 12</b>.
The video of this call is at the address below.<br>
<br>
<a class="moz-txt-link-freetext" href="ftp://ftp.steptools.com/private/NIST/stepmanuf_telecon_20100505.wmv">ftp://ftp.steptools.com/private/NIST/stepmanuf_telecon_20100505.wmv</a><br>
<br>
Martin Hardwick<br>
Team Leader STEP-Manufacturing<br>
<br>
Action Items<br>
----------------<br>
Sandvik to make ISO 13399 models for the cutting tools.<br>
Boeing to make AP-203 e2 presentation models for the cutting tools.<br>
<br>
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