@aptlab

Got some important holes to make tomorrow. Need to drill and tap 4 M6 threaded holes for mounting my ball screw along the Z axis on my mini mill. I noticed after studying reference drawings and YouTube screenshots that folks usually mount the motor drive movement on the side of the machine. I now realize, that way you only need to align along one dimension but I can’t resist the cleaner back location. Seems also like a centered action might pull the head more evenly like the original rack & pinion and makes supporting on both sides simpler but makes the alignment harder to nail. Faking my way through engineering this as usual. I can always drill more holes later.

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