@Electriceye said in Motor problems on RatRig V-Core 3:
Warning: Driver 0.2 warning: phase B may be disconnected
So...that's not good, looks like 2 drivers may be toast. What a way to start a build.
Before you worry about the drivers being blown, provide photos of the stepper connections on the board and motor side, and of the drivers. The error above may very well be about a wiring issue (either phases not being AA BB, or bad connection).