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Going to a single from a 4 is a huge change. The single thread lead screw should only require 1/4 the torque of the 4 thread lead screw BUT it needs to rotate twice as far to go the same distance in the Z. If your steps/mm were 400 they would now be 1600. If your fastest Z speed was 50 it is now 12.5. It needs to rotate 4 times as fast to hit the same speed it did before. So yes, I could see it missing steps.
If every thing is working free and easy then maybe lowering your max Accel on the Z would help. For reference the default on my Ender is 100. I've lubed the threaded rod with high-moly grease. The max speed it will handle is 45 or it starts to chatter.
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GregValiant 700
Going to a single from a 4 is a huge change. The single thread lead screw should only require 1/4 the torque of the 4 thread lead screw BUT it needs to rotate twice as far to go the same distance in the Z. If your steps/mm were 400 they would now be 1600. If your fastest Z speed was 50 it is now 12.5. It needs to rotate 4 times as fast to hit the same speed it did before. So yes, I could see it missing steps.
If every thing is working free and easy then maybe lowering your max Accel on the Z would help. For reference the default on my Ender is 100. I've lubed the threaded rod with high-moly grease. The max speed it will handle is 45 or it starts to chatter.
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