[step-manufacturing] Video of machine tool loading forces now available

[Martin Hardwick]

All,

The short video presented by Andreas last week showing a simulation of 
gravity and spring load forces on a machine tool is now available on the 
ftp site.

ftp://ftp.steptools.com/private/Undecided/Virtual_simulation_of_gravity_and_spring_load.wmv

Martin Hardwick
Team Leader

On 7/19/2011 7:42 PM, Martin Hardwick wrote:
> Attendees
> Andreas Archenti, KTH, Sweden
> Martin Hardwick, STEP Tools, USA
> David Loffredo, STEP Tools, USA
> Aydin Nassehi, University of Bath, UK
> Ronnie Fesperman, NIST, USA
> Fred Proctor, NIST, USA
> Mikael Hedlind, KTH, Sweden
> Bob Erickson, Pratt & Whitney, USA
> Joe Drescher, Pratt & Whitney, USA
> Buzz Callaghan, IQL, USA
> Larry Maggiano, Mitutoyo, USA
>
> Apologies for Absence:
> David Odendahl, Boeing, USA
> Sid Venkatesh, Boeing, USA
> Bengt Olsson, Sandvik, Sweden
> Magnus Lundgren, KTH, Sweden
>
> We discussed the recent addition of robots to the STEP-NC Explorer.  
> The team members have considerable concern about the wisdom of showing 
> robots being used for machining tasks even if it is a nice 
> demonstration of the flexibility of STEP-NC and the kinematics model 
> in AP-214. STEP Tools agreed to update the STEP-NC explorer to give a 
> warning about this whenever a robot is selected as a machine tool.
>
> Andreas Archenti of KTH on modeling machine tool accuracy. KTH has a 
> long history of measuring machine tool accuracy and has worked with 
> many uses in Sweden to help them understand the accuracy of their 
> machine tools and to characterize why different machines have 
> different accuracies even when they were purchased at the same time, 
> with the same configuration and from the same vendor.
>
> ftp://ftp.steptools.com/private/Undecided/Stability_of_machining_systems_July_15_2011.pdf 
>
>
> KTH has developed a double ball bar that can be used to test the 
> performance of a machine tool under different loads. They are 
> developing software to predict the accuracy of tool paths from the 
> measurements made by this bar.
>
> A recording of this conference call is on the ftp site.  The next 
> conference call will be at the regular times on July 29,
> ftp://ftp.steptools.com/private/Undecided/stepmanuf_telecon_20110715.wmv
>
> Martin Hardwick
> Team Leader
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