[OpenSCAD] I have a suggestion: shell()...

nop head nop.head at gmail.com
Wed Aug 10 14:22:22 CEST 2011

Shell is the name of the operation in CAD systems and it must work by moving
faces inwards along the normals to make a smaller object that is then
subtracted. In CoCreate you also get an option to nominate a face to leave

On 10 August 2011 13:11, Giles Bathgate <giles.bathgate at gmail.com> wrote:

> On 10 August 2011 12:35, Dan Zuras 3D <threedee at nonabelian.com> wrote:
> >        The semantics would be that shell() takes the
> >        child object & reduces it to a shell of that
> >        object which is 'thickness' thick.
> I think what you are asking for is an offset module, such that given a
> complex primitive you move all the faces thickness along their
> outwards pointing normals, and then make the faces bigger until they
> join back up?
> Once you have an offset shape you can subtract the original shape to
> create a shell. Or do you mean something else.
> Examples would help.
> Regards
> Giles
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