In the photo, I want to extend the selected surface to the rectangular frame below it.
When I try the “loft” tool for this I get the error “operation failed because the resulting body wouldn’t be valid”.
Here’s a screenshot of someone doing something similar, using another CAD design tool:
How can I do the same in Shapr3D? I think I need some “limiters” (the two lines specifying the bounds of the connection to the frame, in the second screenshot), but I’m not sure. Any help would be appreciated.