Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 500)

Dresser/Wheel Radius Compensation
Chapter 15
15-12
Figure 15.11
Grinding Wheel Motion Across Part to Establish Compensation Direction
If controlling this corner
G42;
Compensation
right
G41;
Compensation
left
Typical Surface Grinder Radius Compensation
12091-I
Program the dresser/wheel radius compensation function with the
following format:
G41(or G42)X ___ Z ___ T ___ ;
Where : Is :
G41(or G42) dresser/wheel radius compensation direction, G41=left, G42=right
X, Z end-point of entry move into dresser/wheel radius compensation.
Program an entry move only on axes in the currently active plane.
Axis motion must take place on each axis in the currently active plane
in order for dresser/wheel radius compensation to be active.
T used to select the offset numbers and pull data from:
• the radius table for the dresser/wheel radius and orientation (first
two digits)
• the wheel geometry table for the wheel length offsets (second two
digits)
See page 10-36 for information on programming a T word. The T
word is optional in the G41 or G42 blocks. The T word can also be
programmed in any previous or following program block.
15.2.2
Compensation Block Format