Quote Originally Posted by Carlb1058 View Post
Just a tad - cheers :) I ended up with 409.62 using 3.175 as the tool diameter
Once we have got both axis to move the same amount i can do the math again and give you the imperial equiv, then we can change the system to old school as like swarfing said it could be a yank model. but we will get it for you then of course that will rule out the mechanical and software stuff as the source of your trouble, leaving only the electrics but they may be fine and just need proper BOB and stepper drivers should you be so inclined..

Rick