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I am trying to create form fitting stands for some rocks that I 3d-scanned. What I've managed to do so far is to create a 3d-printable version. To produce the negative form I shrinkwrapped a plane on my scanned object (to blockout undercuts) and cut it out of a solid with the boolean modifier. That worked incredibly well.

Now I would like to mill such form-fitting stands out of wood. Unlike with 3d printing, I can't machine sharp inside corners with the cnc-router.

--> https://makeitfrommetal.com/machining-square-inside-corners-the-nightmare/

Is it possible to limit the shrinkwrap modifier so that the plane clings to the surface of the stone without producing sharp corners? The smallest inside curvature has to be limited to the radius of the ball- or endmill I am using (5-8mm).

Does anyone know a different method which could solve the problem?

mattmattmatt
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  • Hello. Not sure to understand: this is for a real wood milling? If so what do you expect to be in 3d on Blender? A model that could be printed and help for the mill? – lemon Nov 29 '20 at 13:50
  • Hello lemon! Thank you so much for writing back. Yes, what I want to try is to mill a similar holder for the stone, but out of wood. Unfortunately I cannot mill out small inner radii with the milling machine. This means that if I were to simply mill the negative shape with the blocked out undercuts (as I did with the 3d printer), the stone would not fit because the sharp corners were not cut out. – mattmattmatt Nov 29 '20 at 14:06
  • I am looking for a solution in Blender to modify the surface of the stone to 'blockout' sharp edges that cannot be milled as a negative. – mattmattmatt Nov 29 '20 at 14:16
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    What if: use particles with object (maybe a cylinder) with a size of 5-8mm. Convert all as mesh and use the boolean again? – lemon Nov 29 '20 at 14:27

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