I have an ultimaker 3 that has started making a bad sound when moving the head. It looks to be the Y axis stepper. It's possible that the pulley screws on the motor need to be tightened. However, I cannot find a way to get access to the motor. I have searched, but have been unable to find instructions anywhere for how to take the printer apart to get access (and put back together working 🙂) Does anyone have any pointers or suggestions?
Thanks,
Greg