Spindle Calibration by Manually Editing the .xml

[ed-laserproductions]

My mill does not send a tach signal back to the control computer but the spindle speed is visible on the motor controller.
Since I dont have a tach signal I cannot auto-calibrate the spindle.
I wish there was a way to manually enter the spindle speed vs PWM %.

I think it could probably be done in the mymill.xml file.

Does anyone have any experience with editing the xml to achieve this?

[ger21]

You might want to try playing with the pulley speeds.

[ed-laserproductions]

I dont think its pulley speeds I need to change. Its the stored data when doing an auto-calibrate. I want to manually enter it into the xml. Or adjust whats already in there.

[ger21]

I don't think it's in the .xml

I think it's in the linearity.dat file/

[ed-laserproductions]

Thanks. I just tried to open it but it is not an easily understood file.
Do you have any idea how i could edit it or understand it?

[ger21]

Nope. But if you delete it, a new one will be created.

[ed-laserproductions]

That is interesting but not useful information.

I opened the Linearity.dat file in a hex editor and the structure is not easily visible....

Does anyone know how to accomplish a manual config?

I have thought about hooking a function generator up to an input pin and matching it to the displayed rpm.....

[ed-laserproductions]

I have posted a feature request.

http://www.machsupport.com/forum/index.php/topic,18579.0.html

[BR549]

Art posted a proceedure to calibrate your spindle .Might want to do a search for it.

(;-) TP

[BR549]

I found the document/discussion and posted it here.

http://www.machsupport.com/forum/index.php/topic,18580.new.html#new

Hope it helps, (;-) TP