Spindle driven by a servo motor, how to configure?

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11 May 2020 13:51 #167374 by atlantis
My bed mill has the spindle driven by a dc brush servo motor, this is because the spindle motor is also used to rotate the tool magazine in case of a tool change.

As the servo drive accepts step/dir commands only, similar to a stepper drive, I can't use the spindle interface of the 7i76e mesa card but will have to use a encoder output and configure the spindle as Axis_A and Joint_3 as TYPE = ANGULAR. However, as I don't find any example, I don't know what exact parameters I need to configure for this special case and how to make linuxcnc recognize it as the spindle. Has anyone done it?

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12 May 2020 06:31 #167466 by bbsr_5a
hi
there are multiple ways to do it
depending on your controller system

look here -> www.talla83.de/linuxcncspindel.html

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12 May 2020 12:03 #167505 by atlantis
Excellent, I had seen other videos by talla83 before but didn't know he had done these examples too, thanks!

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