Okay, we need to come up with 1–3 sets of toolpaths for each part:
- 15 degree V carving for the lid relief cuts
- 90 degree V carving for the bends for the balance of the non-flat parts
- arbitrary/calculated V carving for the bend at the front/back
- a profile cut to cut the parts out (which will probably need tabs)
and we need to express them in a way which will allow us to easily make toolpaths for them in Carbide Create or some similar tool.
The issue of course is that we can’t export an STL and get nice efficient V carving toolpaths (at least not w/ MeshCAM — is there some 3D CAD tool which would analyze the geometry and properly cut these out in an elegant (in the original sense of scientifically correct) fashion?)
So, we need to position 3D geometry at the surface in such a way as to get the necessary geometry out as 2D DXFs.
(I’ve asked that the RapCAD developer add export to Carbide Create’s JSON .c2d file as a feature, but doesn’t seem likely to be worked up — if someone could work up a way to create .c2d files using a flexible scripting language I’d be thrilled — at some point I’ll have to look into directly programming them I guess.)