Z Axis Arm Wobble Normal?
I’ve been running my LD-002H printer for a couple of weeks, but this morning I suddenly noticed that the Z axis arm wobbles slightly forward and backward. To be clear, the entire arm moves together, the screw as well as the mounting rails. Total movement is approximately 1 to 2 mm at the end of the arm, in a forward to backward direction. My first question is, is this normal? And if not, what steps do I need to take in order to fix the problem? There does not seem to be any visible screws or hex nuts accessible from the outside of the case for this purpose. Do I need to disassemble the main housing?