I recently bought a k8200 as my first ever 3d printer. I assembled it according to the manual and now i have the error, that the z axis only works while homeing and it only vibrates in manual control (repetier host) Video: Microsoft OneDrive - Access files anywhere. Create docs with free Office Online. ( first homing after manual control) The steppermotor drivers are on 0.5v and i completly redid the z axis wireing. i also exchanged the drivers and tried to connect to x or y axis… always the same result.