I'm a new FreeCAD user and recently downloaded it to try to find a new FOSS tool for doing my CNC tool paths. At first going through tutorials things looked pretty great, but when I tried to do something "real" I've hit a wall. I can attach my project file if necessary but to give some context it's roughly 250 MB in size..
Basically, I'm trying to surface a piece of stock and then 3D pocket out a spoon (followed by a contour with tabs). For this I have a spoon STL that I imported using the Mesh workspace, then converted to a solid part as so:
- Import into mesh
- Convert to Part
- Convert to solid
- Refine Part to remove extra faces
This process took *a long* time. I then created a Draft Clone of the part to scale it on the Y axis a bit. The scaled version is the one I want to mill.
When I go into the path workspace I'm able to create my facing path using an 8mm end mill without too much trouble. But when I try to create the 3D pocket (4mm, 80% overlap value) it hangs, apparently forever (I left it running overnight on my 2.9GHz Intel with 32GB of RAM). I finally forced FreeCAD to close after 12 hours of unresponsiveness (I'm on macOS 10.15.5)
Is FreeCAD really just this slow, or am I doing something wrong? Is there anything I can do to try to reduce the complexity of this spoon in order to speed things up?