Tool Path Rounding Issue

paulsao
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5 years 2 weeks ago #223357 by paulsao

Replied by paulsao on topic Tool Path Rounding Issue

Thanks for your answer I am attaching the 2 G code and I am using the Plasmac post processor.

Attachments:

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MaHa
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5 years 2 weeks ago #223425 by MaHa

Replied by MaHa on topic Tool Path Rounding Issue

Comparing the files, non-smoothing on the left, looks far better in the sim.

The following user(s) said Thank You: paulsao

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paulsao
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5 years 2 weeks ago #223426 by paulsao

Replied by paulsao on topic Tool Path Rounding Issue

Did you open it in qtplasmac?

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MaHa
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5 years 2 weeks ago #223430 by MaHa

Replied by MaHa on topic Tool Path Rounding Issue

The smoothing version is impossible to load with linuxcnc, my cam is capable to display toolpath from external loaded files. but then failed to follow the displayed contour, as expected.

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phillc54
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5 years 2 weeks ago - 5 years 2 weeks ago #223433 by phillc54

Replied by phillc54 on topic Tool Path Rounding Issue

I tried loading both in QtPlasmaC.

noSmoothing.ngc loads fine

smoothing.ngc does not load, I get this error:

Code:

Mon18 16:50 G-Code error in smoothing.ngc
Near line 26 of
/tmp/emcflt-frkj78uq.d/smoothing.ngc
Radius to end of arc differs from radius to start: start=(X54.4565,Y61.2711) center=(X46.5479,Y57.0455) end=(X47.9508,Y63.9894) r1=8.9667 r2=7.0843 abs_err=1.882 rel_err=20.9937%

A 20% error is quite large, there must be issues with the PP. The second image on this post seems to confirm that.
forum.linuxcnc.org/20-g-code/42361-tool-...ssue?start=10#223425

Last edit: 5 years 2 weeks ago by phillc54.

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paulsao
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5 years 2 weeks ago #223447 by paulsao

Replied by paulsao on topic Tool Path Rounding Issue

Phill what is the minimum supported error for linuxcnc to work fine, I corrected some tolerance values and I have error = 0.4% but still I still have an arc error

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