Thank you Peter! ok small steps first. I’ll have to make a peltier first. Bound its cold side and place the hotside to the bottomside of the heatsink as a test? Or just the peltier as a test? I come from a practical approach, as therefore I have no to minimum experience with PDEs on 3d structures.Al...

Thanks, I didn’t know how to proceed.

Ill post a total file tomorrow in the FEM section.

Many thanks!

Hello I am totally new to Freecad, i am really glad there is an alternative that works equal as good as designspark mechanical editor. thanks for the lots of effort and great programming. I made a design in Freecad and transformed it to STL/step file. I would like to do a thermal simulation with mul...