Modeling a marble run

as requested on support…

if one wished to model a marble run in 3D, this is pretty straight-forward to do using trigonometry:

The project itself is at:

https://www.blockscad3d.com/community/projects/1991945

and the STL exports as expected:

GCP State Machine arc.stl (772.9 KB)

which imports into Carbide Create as expected:

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I did a similar project to make some camlocks.

I used this image to create the ramp surface

In your case you could create a boundary to limit the cutter to the groove, and use the gradient to control the cut depth.

Problem being is CC only has the finish 3D path as a lace/zig-zag path, and no way to follow the groove outline on the contoured surface. You’d need another CAM software to cut along that shape.

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