[pitri]

Cutting 2 different diameter with the same tool, first a 3 inch than a 5 inch . If I set the 3 inch diameter right on than the 5 inch diameter is .003 bigger. If I set the 5 inch diameter to be good then the 3 inch diameter is smaller. 003. What parameter do I need to adjust to compensate for that. This is a Samsung fanuc oi-td 3 axis machine 2014. I have the parameter manual but I have no clue which parameter to look for. Otto

[RickPhillips]

I would start with the feed rate. The feed can mess with the size and shape. Or use cutter comp and add a different D for each hole diameter.

M6T1;
S6575M03
GOG54G90 X0.Y0.M08
G43Z.5H1D1
G1Z-.5 F50.
G41 G1 X*.9*Y*.* F25.D1 (5" DIAMETER HOLE, TOOL 1 WITH D1 COMP)
G02 X*.*Y*.*I*.*J*.*
G40G1 X0.0Y0.0
G0Z.5
X1.5Y-1.5
G1Z-.5F25.
G41G1X*.*Y*.* D100 F25. (3.0" DIAMETER HOLE, TOOL 1 WITH D100 COMP.)
G02 X*.*Y*.*I*.*J*.*
G40G1X*.*
G0Z.5