Ok Craig
that ratio is affecting what finally ?
Because at 1:1 I set my machine in mach4 with some nomber that giving me resonnable speed , start and stop. Then I put somme number in Pn 102 (denominator) and all change an not by the ratio , much more significant change and to the drive give me somme AL-10 and that is because it too high somme thing ???? 600kpps some thing like that .
After all the dro , pn 102 (ratio) , screew are in relation all together. But how to be shure of the real 30.02548 on the dro is in real 30.02548 on the table ? I know to test with magnetic base and digital or standard dial , what appen if the number don't match ratio vs physical mesument ?
Thanks
Alain