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buildbotics / bbctrl-firmware

Buildbotics CNC Controller Firmware
https://buildbotics.com/
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Motors go idle during a program/carve #288

Closed dacarley closed 3 years ago

dacarley commented 3 years ago

We've hit an issue with the OneFinity flavor of the BuildBotics controller. We've had a few carves that were unable to maintain straight lines when moving along strictly one axis.

With a little "air carving" and empirical testing, I was able to determine that the motors go "idle" even a gcode program is being run.

If leave the idle current at the default of 0.5, I can easily move the X carriage in the Y direction when the gcode is moving exclusively in the X direction.

If I boost the idle current up to the maximum of 2.0, and perform the same test, I cannot move the carriage in the Y direction manually.

This seems like a major flaw. Why is any motor ever considered "idle" during a gcode program?

jcoffland commented 3 years ago

We cannot help with OneFinity problems. Sorry.