The project was to mill out the holes for the feed shaft of a lathe that were badly worn and then seat a bush with the proper ID. This would hold the feed shaft in alignment. The first part of the project went fine; the first hole was square and centered. However the second went south, about 1/4 of the way through the part moved in the setup and the hole was finishted about 1/8 of an inch out of alignment. (I was not paying proper attention and only realized the problem in time. ) I have machined the hole in proper alignmnet, leaving a 1/8 inch gap for one side of the bush.
What options do I have to 'shim' the gap?
I have read about babbit.
I have thought of taking a material like copper or brass and hammering out a shim to fit and then loctite it in. I am only mildly concerned about having to replace the bushing again. The lathe is 60 years old, it took years of production work to wear the hole.
Thanks in advance. Dan
![20220602_071208_01.jpg 20220602_071208_01.jpg](https://www.hobby-machinist.com/data/attachments/365/365961-5a63045d405fb925fbc9649a46d8e9d8.jpg)
What options do I have to 'shim' the gap?
I have read about babbit.
I have thought of taking a material like copper or brass and hammering out a shim to fit and then loctite it in. I am only mildly concerned about having to replace the bushing again. The lathe is 60 years old, it took years of production work to wear the hole.
Thanks in advance. Dan
![20220602_071208_01.jpg 20220602_071208_01.jpg](https://www.hobby-machinist.com/data/attachments/365/365961-5a63045d405fb925fbc9649a46d8e9d8.jpg)