@joergs5 said in Self Leveling (3 motor leadscrew) printer = Non-planar printer?:
@visionary this looks interesting.
You're using 3 actuators for the bed tilting by changing Z, so according to theory you cannot change 4 degrees of freedom. You can change Z, X rotation and Y rotation by this construction. But you cannot change Z rotation (but you may not need it, because the nozzle direction is not important in most cases).
Should side of the bed in following picture be shown? Also see that midpoint of the bed is no longer in the middle of the bed.
I think you're right. I just realized the kinematics don't allow just rotation round Z, but it must anyways be taken into account in calculations.