jmm03
Hot Rolled
- Joined
- Aug 8, 2004
- Location
- ventura,ca.usa
Hello all, I posted this on the southbend forum in search of advice and am trying here also.
I bought a 5C collet chuck and L00 backplate from ebay. I don't expect perfection obviously, but surprisingly, the quality of both pieces appears pretty good. I machined down the backplate to fit the chuck and got under a thousandth TIR. After taking it off and reinstalling it I have .004. I had already checked the spindle nose and it has a half thou runout, I cleaned everything pretty religiously to make sure nothing was lurking on the surfaces, I took the backplate off and then lightly tapped it onto the spindle with a deadblow but that actually made it worse by a couple of thousandth's. Put it back on and still get .004 runout. Suggestions would be appreciated. Thanks, Jim
I bought a 5C collet chuck and L00 backplate from ebay. I don't expect perfection obviously, but surprisingly, the quality of both pieces appears pretty good. I machined down the backplate to fit the chuck and got under a thousandth TIR. After taking it off and reinstalling it I have .004. I had already checked the spindle nose and it has a half thou runout, I cleaned everything pretty religiously to make sure nothing was lurking on the surfaces, I took the backplate off and then lightly tapped it onto the spindle with a deadblow but that actually made it worse by a couple of thousandth's. Put it back on and still get .004 runout. Suggestions would be appreciated. Thanks, Jim