Large Arc bug? #161
phil-barrett
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I saw this on a Hackaday item's discussion. Does this problem exist in grblHAL - the poster seems to imply it does.
This is pretty cool, but be careful with grbl. It has software bug on G2/G3 commands with large (20 meters) radius – it just starts jogging forever which might damage CNC hardware. Do not assume that switching to 32 bits controller would fix it – 32 bits grbl has same bug. You might think that nobody would ever need radius like that, but some CNCs today are already have 1.5 and even 2 meter bed and they do. But also, some gcode generators produce G2/G3 commands with huge radius even for a very short lines (which could be replaced with a straight line).
Seems like an obscure bug (20 meters radius) though if the problem exists in grblHAL it might be triggered as described in the quote.
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