Great question Adrian:
The built in SketchUp importer is pretty good (I helped a little design it!) but there are some shortcomings:
First, it doesn't support newer versions of SketchUp. More importantly it "fits arcs to curves" rather than pulling true arcs and curves from SketchUp. Back when the default importer was made it was nearly impossible to do this from SketchUp.
We're pulling true arcs and circles so if you're rounding over a table top or making a piece of furniture you'll get a smooth arc.
Secondly we're taking your 3D model and scanning all of the vectors needed to make a particular part. This way when you get your part(s) into Vectric you get perfect closed loop vectors, organized on layers by depth/operation type and you get those true arcs/circles. We even automate drilling toolpaths.
Where it really shines is that you can make all of your toolpaths in one operation. Since we know what all of your vectors are, we can fully automate the toolpathing. We're doing it natively in Vectric too, not using "impoorted" toolpaths so you can still edit ours later if you want.
Essentially this means you can draw something in SketchUp just like it exists in real life, and in just a few clicks have all of your toolpaths ready to go.https://youtu.be/E9Cmrg-lkkY
Check that video to see how it all works. Skip 2 minutes in to bypass the preamble.