LinuxCNC S-Curve Accelerations

I'm not really in a position to do any testing on hardware right now (I no longer work in a router shop.) but I can offer links to some G-code that I used in the past to help with testing the circular arcs tool planner when it was being developed. They are some 2.5-D V-groove engraving tool paths. They are in inches and need to have approximately +/- 0.003 of precision in the movements to look good. The first file is only XYZ moves, the 2nd file has XYZW to run a 2nd engraving spindle on a 2 headed router.

 

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I'll attach one simple spiral planing operation gcode file. In my machine this brought up the toolpath blending problems in tp1, I had to roll back into tp0 (haven't tried tp2 though). I could not get the machine to move smoothly, tried different blending settings but no help (tp0 blends this just fine). Unfortunately didn't have time to investigate any further but maybe simulation shows something?

github.com/mika4128/liscio/tree/main
new trajectory/gcode compressor for the future trajectory planner, testers wanted, feed your gcode to it, check the SVG output

This looks promising, nice work!

A couple of quick tries, sometimes the compressor seems to output scientific notation on small decimals; ie. X-76.198 Y6.6066e-05. That and injected G0 X0 Y0 Z0 at the beginning are only things that pop up at the first tests.

Should be fixed