[OpenSCAD] What about STEP or IGES export?

Britton Kerin bkerin at fastmail.fm
Fri Feb 19 07:04:10 CET 2010

On Sun, 07 Feb 2010 13:50 +0100, "Marius Kintel" <marius at kintel.net>
> On Feb 6, 2010, at 22:00 , Elmo wrote:
> > Any plans on exporting to standard parametric/solid cad formats?  
> > Came up
> > on the thingiverse list. Translating to the brl-cad lang or using  
> > their
> > file format might be an option too.
> >
> No plans, but it would be an interesting feature to add.
> You'll most likely lose (most of) the parametric features of the  
> exported models (I don't think STEP or IGES can represent such  
> parametrizations as OpenSCAD allows, but I'd love to be proven wrong  
> here).
> A partial parametric conversion could probably easiest be done using  
> Open Cascade.
> To my (very limited) knowledge, brl-cad is a bit limited in terms of  
> what type of geometry you can bring into a CSG operation, but there  
> might exist ways to get around this. Conversion could be tricky though.

Before finding OpenSCAD I started out to create my own CSG IGES files
before eventually being told that the CSG stuff in IGES is all vapor.
However, I was under the impression that the stuff that is implemented
in IGES-supported software so-call BREPs is at lease analogous to what
STL has.


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