ive been using my mpcnc now for 3 days and have cut some stuff for about 3 hours in total. some hole pattern and some tools to clamp my stuff.
after the last job X movement is okay but when i move in the Y direction the Y2 motor starts making strange movements. ive disconnected the belts etc to check and connected the motor to Y1 to check but the same happens. Y1 rotates normally Y2 moves left and right but does not fully rotate.
ive replaced the stepper motor with a new one. ive replaced the wiring and replaced the TMC2209 drives for the Y axxis.
Checked with the M122 command to see if anything is wrong.
driver current is set to 1300ma and im using a 8amp 12V power supply.
im using NEMA17 2A steppers with BTT TMC2209 drivers on a SKR Pro 1.2
im using the TFT35 and had a SD card in the TFT screen to work from.
im using Stepperonline 17HS19-2004S1 and have a few spare.
Screen is using firmware: from nov21
SKR is using the latest dual endstop marlin firmware.
Took the belts off to check if the machine still is able to move freely and nothing is binding up checked the instructions and made sure everything is square again. took all bearings out and checked. but im thinking i have a bad SKR 1.2 pro. any other things i can to to check?
any pointer or ideas are welcome. can make a video of the motor movement if someone wants to see.