Random circles

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Random circles

Postby RJS » Sun Oct 08, 2017 4:23 pm

I am seeing a issue with UCCNC doing sort of a circle, outside of the actual path, when cutting. It happens on arcs as shown circled in the attached png file. The spiral is not part of the path, it is like UCCNC keeps going with the arc into a circle and then picks up where it should afterwards.

Heart Motion.png

I included the milling profile and the g-code (heart.txt) files so you can try to reproduce if necessary. The g-code lines this happens on are around 192, 352 and 541.

If you use lines instead of arcs it correctly follows the path.

Hopefully this is clear as it was a bit hard to describe but it is easy to reproduce using the g-code file, hopefully you will be able see what I am talking about but if not let me know how I can help.


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Re: Random circles

Postby dezsoe » Sun Oct 08, 2017 5:24 pm

Try to run it with the 1.2045 version. As I see it will work. (This version has a fix for these cirle problems.) See this topic for latest test versions.
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Re: Random circles

Postby cncdrive » Sun Oct 08, 2017 8:10 pm

This issue with very small arcs was introduced sometime in January when there was some optimisation done in the optimiser.
The problem was reported by a user recently and we fixed it already, in version 1.2045 : viewtopic.php?f=2&t=240&start=40
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Re: Random circles

Postby RJS » Mon Oct 09, 2017 10:43 pm

Thank you for the quick response. The 1.2045 release does correct the issue.
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