Warco Major CNC build log

[Robin Hewitt]

Back again and cutting metal...

Going for the larger stepper motor this time with half the pulley reduction to put me in the power band. 1 rev = 4mm, half step = 10 microns.

Same pair of angular contact races with the Belleville washers holding it in tension as before.

The front of the mill is to extend forwards with bolt on cheeks. The bearings are set in a 16mm plate which fits into grooves in the cheeks to hold it square and rigid.

The ball nut is enclosed a la Kip, the bottom of the housing is wider to take a pair of 8mm set screws which tie it to the spindle, or not, as the case may be.

Next job, fitting the cheeks so they wedge tight in the ironwork