SimScale CAE Forum

Cannot upload SAT/ACIS file

I am trying to upload a 65MB SAT file that was converted in revit. Initially, the upload starts with no problems but at 80%, it gets stuck. After a few minutes, the window closes and no failure messages or anything appears.

If I upload a file that is 100kb in size, I experience no issues at all.

Please help me out with this issue.


Hi @aa49khan!

Can you share the file with me please? Feel free to post the file link here or send it privately to me. I will try it by myself and if it does not work we should convert the file.



Thanks for the reply jouse.
I have send you a message.

Hi @aa49khan!

Does not work for me either. Is there a way for you to export this to a STEP or STL file? That are the most common ones used on the platform and work very well. Alternatives are:

  • BREP (*.BREP / *.brep)
  • Soliworks (*.SLDPRT, *SLDASM)
  • Autodesk Inventor (*.3ds, *.iam)
  • Parasolid (*.x_t)
  • Rhino (*.3DM)

Other than that, is there a way to simplify your model a bit? I saw that it has over 4,500 components which is enormous (at least for me). Also what kind of simulation are you trying to perform?



Hi Jousefm,

Let me see if I can convert them to any of these listed file formats.
Its a 5 story building with MUAs. I was thinking if to have temperature profile in the building due to the airflow from MUAs.

Thanks for all the help. Really appreciate it.

Hi @aa49khan,

you’re welcome! I would first focus on simplifying the model before just converting it as the model is insanely big. I am sure you can merge components to a bigger one and just build it out of surfaces.