I am attempting to make a cap that fits on a wooden pole to use on my patio contain the wires for some string lights. I make the part using FreeCad and I use Lattice2 WB to put it all together. I make 2 parts, the sleeve and a threaded section which I place in the sleeve using Lattice2 workbench. It seems like it all goes well,
The issue is, when I import the part into SuperSlicer so I can see how the overhangs look, I get an error that there are 648 open edges. When I open the part in Ultimaker I get a message that there are missing or extra surfaces.
Is there a way in FreeCad to examine the part to find these surfaces, or is doing what I want to do just a not very good idea? This is not the final part, I just want to use it to understand the printing process better.