Run on 1mm further around an isolation track to ensure it's broken
Issue #176
closed
When the cuts are very light, sometimes the copper isn't broken at the point where the tip first plunges into the part, and there's a short distance before the tool bites and begins cutting. (See section 8 in the picture below.)
If you always end the cutting path of at exactly the point where you started, then there's a, say, a 5% failure rate where the operator has to spot the incomplete cut and finish it with a scalpel.
A slight run on continuation of 1mm along a cyclic path beyond the start point by default will almost eliminate these failures and should make no difference to the overall performance.
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I'm not sure I understand what you are referring to. If you are using a tool with diameter d, then in a closed path, there is at least an overlap of d. You picture, part 8, is showing cuts that don't return to the starting point.
Could you please post a screenshot of the Geometry Object and CNCJob Object that correspond to the cuts where you see problems?