[Hotfingrs]

Pretty straight forward process. Find the center hub that you need for your rotor. Put on the back piece then the front piece, and tighten it down. This is what keeps the rotor centered for the machining process. Next postion your cutters, there is one for the front surface and one for the rear. Turn the dial indicator in until it just starts to take off metal, do the same for the rear. Flip the auto feed and let it go completely across the face. Then see if all the grooves are gone, if not take a few more thousandths off. Repeat until the scoring or grooves are gone. The lathe has a course and fine finish. At first you use the course finish, then for a final cut use the fine finish.

Now, maufacturers have a minimun thickness for their rotor. After machining you have to measure the thickness of the rotor and see if it falls into the more than minimum category. If it's under the minimum, you can't put it back on the car.