The dial upgrade on my X-Y table was practice for doing my South Bend lathe.
I am so pleased with the results on the table, it will be great on my lathe.
I will be increasing the dial size on both the compound and the cross slide from 1 inch in diameter to 1 3/4 inches in diameter. This project requires making a new lead screws for the compound and the cross slide. I am starting with the compound (I could cut up the old ones but there would be no going back). I started with a piece of .500 drill rod ( because I had no 3/8 diameter), turned it to .374" diameter and cut 3/8-10 acme thread for 3.750 inches. I had an old compound nut from when I replaced it. It only had a little wear ( I think about .010" back lash) So I cut the new screw to fit this nut and will use it in the change over.
The photo below shows testing the nut for fit. There is zero back lash on the fit.
The next photo is the completed lead screw. It will fasten to the bushing in the bearing assembly.
more tomorrow.....
I am so pleased with the results on the table, it will be great on my lathe.
I will be increasing the dial size on both the compound and the cross slide from 1 inch in diameter to 1 3/4 inches in diameter. This project requires making a new lead screws for the compound and the cross slide. I am starting with the compound (I could cut up the old ones but there would be no going back). I started with a piece of .500 drill rod ( because I had no 3/8 diameter), turned it to .374" diameter and cut 3/8-10 acme thread for 3.750 inches. I had an old compound nut from when I replaced it. It only had a little wear ( I think about .010" back lash) So I cut the new screw to fit this nut and will use it in the change over.
The photo below shows testing the nut for fit. There is zero back lash on the fit.
The next photo is the completed lead screw. It will fasten to the bushing in the bearing assembly.
more tomorrow.....