Hello Chaps
I have calibrated My x axis with a dial indicator to an accuracy of 0.02 on a move
of 8mm.  g0 x0
              g0 x-8

When I am turning it appears to be measuring a much longer cut.
I am turning in diameter mode but is seems to be measuring in radius mode

can anyone suggest a solution. I think it is working in radius mode and therefore
doubling up on the depth of cut??

My macro gets depth of cut of 2mm ( machining plastic) and then deducts
( depth of cut * 2 ) every time it goes through the subroutine to get the
next diameter for start of cut .
regards

fred
 

Machine Coordinates are in terms of Radii, same goes for the tool table offsets no matter what mode your in.
Part Coordinates display in terms of the configured mode and Program Coordinates display work offsets with any G52 / G92 work offset. Just for info,
some of the wizards ( if you use them...don't remeber which ones) may not work in both modes.

Adjust you macro accordingly , and a should have a comment in the macro for what Mode it is used for, or one can modify it so it works for both
( me and macros are like water and oil........... ).

RICH