Hello everyone.
I have recently started a new job and have to mill the surface of pinions to a high level of tolerance making every effort to ensure the correct radius is maintained ( the backs of these pinions are spherical ). We have regular checks using two clocks that check back face height and run-out, these are set to zero and you cant have more than 0.05 microns. I am totally new to all this having never used a lathe or milling machine in my life and cant for the life of me work out how one adjusts or modifies the machine by the information given by these clocks. I know that if the back face reading is too high I input a minus figure on the z axis which takes more material off the height to get to within tolerance and of course a positive figure if the back face as measured by the clock shows that the back face is getting to shallow. But how do you determine what to put into the x axis if the clock is showing run out of the radius? This is especially important of course when changing the finishing tip for the spherical. I hope this makes sense as I have yet to imbibe the correct terms and glossary from my work colleagues. The machine I am using is a Mazak Dual Turn 20 with Mazatrol 640t pc-fusion control.