I just recently changed out the OEM Build Plate adhesive pad with a PEI Sheet. Prior to doing this work, the build plate moved back and forth just fine along the Y Axis (front to back). The Build plate could be moved manually until it hit the front and back frame of the printer. The build plate also hit the Y Axis Endstop just fine.
After doing the work to replace the PEI plate....I turned on the printer and homed it and when it attempted to automatically slide the build plate back to the end stop it started shaking violently as the plate moved overtop of the end stop switch without touching it.
The plate also sails overtop of the front and back frames of the printer. I have no idea what happened. Any suggestions?