I was attempting to design a 3d-printed truss structure (to print and load-test) , but the edges somehow fail to join. The edge showing tool shows naked edges in the model , but none of the tools that are meant to join/fix edges work and fail.
Attempting to CreateSolid also fails (removes most of the surfaces)
The problem is , when I export this file as a .STL and open it in my slicer (Simplify3D) the joint edges of the truss structure are removed (not completely , but the beams are not connected) and the structure is basically a group of beams mid-air.
Another unexpected issue is that some random surfaces appear once the model is sliced , but there are no such surfaces in the .STL or the Rhino model.
I attempted to remove the beams which were causing the naked edge but that did not fix my problem. (and there are still a couple of naked edges available)
edge issue without some beams:
(there are no naked edges in this part of the structure which led me to believe it has nothing to do with naked edges)
edge issue with the beams and unexpected surface appearing which is not a part of my design nor a software-added element: