Hello Patryk,
this seems to be the same problem as here: Bug 892: New Simplify Algorithm Fails With Large Projects
Do you use new simplify algorithm? To check this, go to: RECONSTRUCTION/ Settings / Advanced / Use legacy simplify alghorithm and it should be set to False.
You can also use the old simplification alg. but I don’t think you would have enough memory for it.
Btw. what are your PC specs?
Unfortunately we don’t have a good solution for this right now.
As I can see it now, your options are:
- Use external tool to simplify your model
- Split your model into several small parts. Simplify them separately (probably with the old simplif. alg.) and merge them afterwards in some external tool.