Help! Alarm Notification: The sled is not keeping up with it's expected position

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@concussiongfx

It looks to only happen when the work load is on the left motor

This sounds like exactly the bug I just fixed. With PCB version 1.2 the left motor was not being driven at full power.

Would you give the firmware linked here a test and let me know if it helps?

Motors wiggling but not moving 5 degrees during calibration

I think I know what is going on. We just started shipping PCB version 1.2 and there are some improvements to the design but the firmware still needs to catch up to take advantage of them. Will you give this test firmware a go? (it will only work with 1.2). cnc_ctrl_v1.zip (82.0 KB) I think it might fix the behavior you are seeing