How about using obj23dm utility and then saving from Moi as iges?

- Brian

Hi Brian, that may be possible but also a little complex because the obj23dm utility is a Windows command-line program and the operating system being used in this case is the Mac...

But yeah that could be another possibility with using Wineskin or CrossOver to run it.

Again though, it's not just a matter of converting from one kind of packaging format to another, CAD programs do not really expect to receive data in IGES files where objects are formed of hundreds of thousands of little tiny triangle facets so if that's what the original file contains it may just not be suitable for conversion without some complex kind of surface reconstruction and reverse engineering step.

- Michael

Hey thanks Michael for the explanation. Yeah, it's to think it's all magic to convert from this to that. Makes sense what you explained. Bummer because there are some forms which are easier to make in Polys and I want to work with an engineer who uses ProE. Iges would be a good go-between.


Thanks!
Alano

Hi Alano,

> Bummer because there are some forms which are easier to make in Polys and I want to
> work with an engineer who uses ProE. Iges would be a good go-between.

There is a possibility to work like that using the t-splines package. T-splines can convert a the sub-d control cage into a NURBS surface equivalent that can be read into CAD programs and transferred through IGES.

I don't think that t-splines is available for OSX though.

The other thing that you could try which is similar is the sub-d NURBS plug-in for Modo.

But it basically takes a specialized converter to do that route.

- Michael