1
General Mach Discussion / Re: Large circle problem
« on: November 02, 2007, 07:12:30 PM »
Yes, we are cutting an existing part. It is used to locate multiple components, one of which is mounted in the center via a 1" hole. We used this hole to center the part in our mill setup and the only time the part was moved, it was rotated at this point. There was no more than a .001" of play at the center. The finished part was measured 180 deg apart on the x-axis. There was only .0006" error at these points. At the points on the y-axis the error was nearly .030". There was no re-zeroing and the part was never removed from the mill. To measure the part we use an edge finder and jog the table in .0001" increments.