For the Leadscrew I made a stepper mount that attached to the board. (Had to make a new mounting board.)
I removed the Pinion and hand wheel fro the carriage and cut a delrin block and drilled a hole in one end and attached it to the carriage with a 10/32 screw where the pinion setscrew was originally. Then backed the carriage up so that I could line up a mark with the stepper shaft. then removed the block and drilled and tapped the block of the shaft mark for a 1/4"-20 threaded rod. I made a thrust bearing mount for the other end of the rod to accomodate a 1/4" ID bearing that I had on hand.
To do the spindle sensor I drilled a hole in the headstock pulley and epoxied in a small rare earth magnet. Then used a hall effect switch mounted on the headstock so that it would be triggered by the magnet as the spindle rotated.
I've not addressed the Z axis yet. I'm going to convert the Spindle motor to a DC unit before I do the Z.
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Nathan |