[larrym574]

I am trying to use TNR compensation while machine on a fanuc controlled lathe, but keep receiving an error that states: PS0041 interference G41/G42...
What am I doing wrong?

Heres my program:

G28 U0 W0
G50 S625
G96 S500 M4 M8 M42;
T101;
G0 X15.02 Z.3;
G1 Z-1.73 F.013;
G0 X15.1 Z.01;
G1 X9.76 F.013;
G0 Z3.52;
X7.;
G72 W1300 R.025;
G72 P10 Q11 F.013;
N10 G0 Z3.31;
N11 G1 X5. F.013;
G0 X6.66 Z3.5;
G1 G42 X6.65 Z3.31 F.013;
G2 X6.698 Z2.702 R.25 F.01;
G1 X9.125 Z.153;
G2 X9.576 Z.01 R.25 F.01;
G0 Z7.;
G0 G40 X15. Z10.;
G28 U0 W0;
M30;
%

[dcoupar]

Can you post a drawing of this part? I've tried to draw it up, but it doesn't look right.

[Al_The_Man]

Is it the distance error from engaging the G42 to the point of the first move inadequate?
i.e. less than the tool radius?
Al.

[dcoupar]

Without seeing your part, I think the problem may be the Z7.0 move after the last arc. I would try adding a line to give room for TNR comp. Also, the first G2 doesn't look like it's right.

G72 W1300 R.025;
G72 P10 Q11 F.013;
N10 G0 Z3.31;
N11 G1 X5. F.013;
G0 X6.66 Z3.5;
G1 G42 X6.65 Z3.31 F.013;
G2 X6.698 Z2.702 R.25 F.01; < the distance from the start point to end point of this arc is 0.6085 R.25 won't reach.
G1 X9.125 Z.153;
G2 X9.576 Z.01 R.25 F.01;
G1 X9.776 W-0.0001 < I think you need to add a line here to provide room for TNR
G0 Z7.;
G0 G40 X15. Z10.;