Some of those large, high-end Japanese names have temperature sensors installed 
throughout the frame, which they use to compensate for thermal expansion. 

Curious if anyone has ever done that with LinuxCNC?

Steel thermal expansion coefficient is around 6 parts per million per degree 
Fahrenheit, which would come to roughly 3 tho on a 2-foot part with a 20°F 
temperature swing. The frame on a production machine gets quite warm, as all 
those KWs have to go somewhere...

> On Jul 15, 2020, at 9:52 PM, Jon Elson <el...@pico-systems.com> wrote:
> 
> On 07/15/2020 09:03 PM, Stuart Stevenson wrote:
>> Looks like a Yasnac control. I zoomed in on the MPG. It is labeled Yasnac.
>> 
>> 
> Ahh, more complicated than I thought.  Some models had Fanuc, but I did not 
> recognize that control panel.
> I don't know Yasnac, but they may be less proprietary than Fanuc, which are 
> pretty legendary in that regard.  It might be easier to re-use the servo amps 
> and spindle drive, then.
> 
> Jon
> 
> 
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