So I don't that think that the way Nickn has produced his gcode is, in itself, flawed even though there might be better methods of generating the model. My starting point was a rectangular grid approx 150x120mm with heights at 1 mm intervals, so the actual mesh model was relatively coarse, and the CV function in the motion controller smoothed it all out and there was no jerkiness or other roughness in the cutting process. However, my copy of Vcarve produced a gcode file - and this was just for finishing, not roughing - of just under 50000 G1 straight-line moves in 3D and the finished item shows no sign of facets, so while it might not be perfect, it is perfectly capable of doing the job. However, I would expect F360 or any other CAM software to do the same thing - it's generating a toolpath to match the model and the answer is at the motion control level.Ĭan't say anything about RhinoCAM - I have used an older version of Rhino itself (v4, I think) and concluded that as an engineering CAD application it didn't suit me - but I'm sure that things have moved on a lot since then. I also used vCarve for generating the toolpath although my mesh model came from other software. However, using the appropriate CV setting I have a very smooth finished result. I've just finished a project which involved copying a 3D relief carving by measuring the original across a 1mm grid and converting the mesh into a highly-faceted model and hence toolpath. This also helps the quality of finish doing the kinds of thing you are doing. Much smoother! Anyone who has been through this will know what I mean! This explains why straight cutting is fine but highly-faceted cuts are not. With it on, the machine tries to keep up a steady cutting speed by very slightly (and generally imperceptibly) rounding off the "corners" but giving a much smoother motion. If this is turned off, the machine will stop at every change of direction and then restart. There is usually a "CV" (constant velocity) setting. Part of the problem and maybe the solution lies in your motion control software.
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