How to set contour overlap on Haas machine?

[allenp]

Machine is older, it is actually Mikron Haas VCE 500, but the control is very similar/equal to newer Haas mills.

We have problem with this machine that it doesnt finish contour (toolpath) very precise, for example if you make a circle it will leave a small amount of material around start/end point of mill toolpath (circle).

So we deal with this in CAM software, to extend this toolpath for example by 2mm... or make 2 circles instead of one.

But this problem occurs only on this older Haas machine, we have 2 newer and they dont have this problem.

Is there a parameter or setting on the machine which could overlap this contour for some amount so this problem wouldnt occur?

Thanks in advance.

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[Jim Dawson]

It would seem to me that setting a proper leadin/leadout in the CAM setup would solve this problem.

[allenp]

It would seem to me that setting a proper leadin/leadout in the CAM setup would solve this problem.

Nope, that is not true. Same program on newer machine doesnt have this problem

[machinehop5]

...try using G61 Exact Stop code or use G09

[allenp]

That is not the solution its a patch. I want to fix machine not change gcode

[Jim Dawson]

That is not the solution its a patch. I want to fix machine not change gcode

I guess the fix might be to call Haas and get a software/hardware upgrade to match the newer machines. Or at least see if they can suggest a parameter change that would fix that.

[thesimpleindian]

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