Yes I know someone is going to say zero but that's not going to happen.
I noticed my 3 jaw chuck last night was holding bras quite a bit off centre.
I've just finished removing it from my lathe and cleaning it which seams to of improved it a bit but on measuring the runout I'm still getting 0.12mm between max and min readings at 100mm from the chuck, or in the old money just under 5 thousands at 4inches.
This seems like a lot to me.
Should I expect better from a Chinese 3 jaw chuck or is this about par for the course?
I noticed my 3 jaw chuck last night was holding bras quite a bit off centre.
I've just finished removing it from my lathe and cleaning it which seams to of improved it a bit but on measuring the runout I'm still getting 0.12mm between max and min readings at 100mm from the chuck, or in the old money just under 5 thousands at 4inches.
This seems like a lot to me.
Should I expect better from a Chinese 3 jaw chuck or is this about par for the course?