I'm working on a number of icons for 3-D printing. I'm having an issue where I've traced out the object as linked edges and vertices, and then gone through the following process:
Convert to curve. In the curve options, extrude to add "height". Convert back to mesh. Apply solidify modifier.
This has left me with an object that is as I need it, but has also left some self-intersecting geometry that I would like to remove, so that I'm not getting overlapping faces inside the geometry etc.
I've tried the: Ctrl+F > Intersect (knife) but it doesn't seem to be simplifying the geometry as I need it Boolean modifier using a cube around the object, and doing all three available operations. Nothing seems to happen here.
I have the .blend file here in a dropbox folder https://www.dropbox.com/sh/c05dvx6vforyx1y/AAB_bYT-gw0Z40l0AGKju9tga?dl=0