LinuxCNC does not follow gcode layout

Today, while milling a PCB, I recognized, that the result is slightly different, than it was designed.

You can see difference in attached picture, which I have taken from axis 2.5.3 (simulation mode).

White is the line, it should be; red is the path the mill have taken. The real milled pcb, done with emc 2.2.? have same problem like this simulated. It looks quite similar, so the machine itself should not be the reason.

My question: Is there any parameter, which I can set (e.g. in ini-file) to make the path more accurate?

Thanks for your answer
br
Holger

Hi

Have a look at G61 and G64

But if you are using emc 2.2 what may or may not have been included is just a distant memory

regards

Thank you very much!

G64 is the correct answer.

pcb2gcode created gcode file including line:
G64 P0.0050 ( set maximum deviation from commanded toolpath ).

Unfortunately I did not read this. Giving G64 P0.0005 solved the problem.

Thanks again and
br
Holger