I have a jet 1442 lathe and have trouble using a faceplate. The stock Jet 6" faceplate works fine but an aftermarket smaller 4" faceplate allows the blank to scrub the motor housing. I bought a 3" extension from packard and have about 18 thousands of runout using it. The item desription says that you may experience some run out but I was expecting 3 or 4 thousands at most. My lathe arbor has about 1 thousands of runout. Any ideas?
Tim