05-21-2014, 09:36 PM
Ed,
I meant to ask you if the M12 thread fit the mating part. I had nothing to gauge the thread other than my Polish thread micrometer, so I pray the nut you have fits OK!
Also, I wanted to get a snug fit as it'll only get looser with use, and its best to have a snug fit so the cross slide doesn't back off while cutting. Some lathes have a poorly balanced dial (one big handle, no offsetting weight), and I've seen those move with chatter or interrupted cuts.
You should find it smooth and easy to turn when assembled with the dial on it.
Lastly, I suggest that for the center adjustment set screw, grind a drill point (tap drill size) to match the cone point set screw and reach through the hole and create a "landing spot" for the cone point at the cut for backlash adjustment in the bronze nut.
I meant to ask you if the M12 thread fit the mating part. I had nothing to gauge the thread other than my Polish thread micrometer, so I pray the nut you have fits OK!
Also, I wanted to get a snug fit as it'll only get looser with use, and its best to have a snug fit so the cross slide doesn't back off while cutting. Some lathes have a poorly balanced dial (one big handle, no offsetting weight), and I've seen those move with chatter or interrupted cuts.
You should find it smooth and easy to turn when assembled with the dial on it.
Lastly, I suggest that for the center adjustment set screw, grind a drill point (tap drill size) to match the cone point set screw and reach through the hole and create a "landing spot" for the cone point at the cut for backlash adjustment in the bronze nut.