Hi,

I am struggling with circular interpolation and g41/g42 offsets. As you can see from the tool path point 5 is not placed correctly.

Here is the code. How do I program to get to point 5???

%

n1 (P0) g00 x0 y0 z0

n2 (P1) g01 x0. y1.750 z0.250 f5 (Entering move)

n3 g01 g41 x0 y1 d1 f5 (g41 move to P1)

n4 g01 z-0.005 ( lower cutter to start cut)

n5 (P2) g02 x1 y1 r.625 f10

n6 (P3) g03 x1 y0 r.625 f10

n7 (P4) g03 x1 y-1 r.625 f10

n8 (P4) g01 z.250

n9 g01 x1.750 y-1.750 (Entering move)

n10 g01 g41 x1 y-1 z-.005

n11 g02 x0 y-1 r.625

m30

Thanks,

Billy

BTW, I also need to understand how to use the I and J commands for this example. I have read page 247 in Peter's book till I rubbed all the ink off the page...lol As this is programmed in all four quadrants it is a bit beyond my understanding at the moment.