Know this is old, but I have the same problem or worse: I can't even copy/paste SU models. The only way around is to insert the SU model using File>Insert, then redo the scene. This is a show stopper bug, surprised this wasn't caught. I'm also on OSX (El Cap), SU Pro v16.

@bomastudio said:

@glro said:

It seems that somebody is trying to write something similar

http://sites.google.com/site/teclait/home

the structural part is still not available... but it will probably include some finite elements program...

Yes, of course ... I'm a structural engineer .... I want to extend TECLA (see the project home

http://sites.google.com/site/teclait/home

to build a FEM software based on SU. Ad the moment I'm developing the Architectural modulus (that will be, with some changes, the Pre_processor).
I'm looking for some FEM software open-source and find some:

Calculix, GmsH, FreeFEM++ but nothing in ruby!!! Someone has news?

Very interesting idea to have a FEA ruby. I'll be watching to see if anything develops on that front. I sort of agree with the general idea that it may be better to write a translator from SU to an existing FE program, but if it can be done within SU all the better. It does seem like a huge amount of work, though