First job was to make a ballnut mount small enough to be fully contained inside the saddle.
A 12mm cap screw secures the mount to the x slide.
The saddle was machined to increase X travel and to lower the ballscrew in the cavity. This allows more metal at the top of the mount to help the screw to attach properly.
Ballscrew mount machined to fit inside the saddle.
Ballscrew turned smoothly by hand,
The mounting bracket is attached to the saddle with 8mm socket screws and fitted quite nicely!
I was able to use the lathe to drill the pulleys.
Mounting the motor was quite easy, just needed a spacer to get it inline with the ballscrew pulley. This allowed the motor to sit just below the Z axis ballscrew. Next task is to mount some sort of cover to keep chips out.
I chose a belt long enough so the motor would sit below the Z axis ballscrew.
Since the compound slide was removed, I needed to increase the height of the tool post. So, to cover the existing slots in the saddle, I first added a 12mm thick aluminium cover secured with 4 x 6mm socket screws.
A 50mm riser block was needed to get the tool post at the corect height since the compound slide was removed.
A plastic drag chain tidies up all the wires!
Last job was to make a cover for the belt. This started out as a 2lt milk container!
