[OpenSCAD] Preserve "holes" in module objects

bobc bobcousins42 at googlemail.com
Sat May 16 14:13:08 EDT 2015

stonysmith wrote
> (humor)
> We just need a way to specify the material for each part.
> Then you can simply use:
>    cylinder(r=1,h=100,material=antimatter);
> (/humor)

I know that was a joke, but I think it might be a way to do it. AMF supports
a material id=0, which is used to indicate a void. In a sense, it's a
material with a density of 0.

Having an explicitly defined void might enable holes to be "added" to other

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