Hi Pilou,

> @Michael : why the first ".Sat" from 123D is not accepted by Moi3D ?

It does not seem to be a standard .Sat file, it appears to be some customized version that is specific to Autodesk.

I tried to read it into ViaCAD and it was unable to open your .sat file either, it gives an error: "ACIS READ FILE SURFACE DATA ERROR".

Are you able to read that .sat file into any other program?

- Michael