I've had a Atlas 10" with a threaded on chuck for many years. Recently I purchased a larger machine, a Clausing 12". The three jaw chuck is somewhat a clone of an adjustable Buck chuck. I don't think it's a Buck as there is no name on it, and a question to Buck indicated that they put their name on all of their chucks. It was probably made about 1951, when the lathe was built.
This is the first chuck I've had that has the capability for run-out adjustment. The other day I chucked a rod in it and put the dial indicator on the rod. I had a bit over .005 run-out, so I decided to see how to adjust it. I had already cleaned the interior, so I loosened the hex screws around the outer face a little bit, then started on the 4 hex screws toward the rear of the chuck.
It seemed logical that it should work much like a 4 jaw adjustment. I very soon saw I had run out of travel before I had moved the chuck much.
It seems like I need to take off about .010 from the shaft coming out of the adapter plate. It wouldn't be much and it seems to me like the chuck wouldn't notice the difference except I could move another few thousandths in the truing process.
My next thought was "hold on there, John. You may want to ask experienced people before you honk something up!"
Am I thinking to do something bad or does this sound reasonable?
This is the first chuck I've had that has the capability for run-out adjustment. The other day I chucked a rod in it and put the dial indicator on the rod. I had a bit over .005 run-out, so I decided to see how to adjust it. I had already cleaned the interior, so I loosened the hex screws around the outer face a little bit, then started on the 4 hex screws toward the rear of the chuck.
It seemed logical that it should work much like a 4 jaw adjustment. I very soon saw I had run out of travel before I had moved the chuck much.
It seems like I need to take off about .010 from the shaft coming out of the adapter plate. It wouldn't be much and it seems to me like the chuck wouldn't notice the difference except I could move another few thousandths in the truing process.
My next thought was "hold on there, John. You may want to ask experienced people before you honk something up!"
Am I thinking to do something bad or does this sound reasonable?