I'm working on some different samples of basic Sketchup files for the plugin. Uploading to the site soon.
The number of segments you'll want in a curve will depend on the size of the arc and the overall dimension.
I've hardly made a science out of it but I find that cutting from circles of 360 segments or arcs of 90 segments yields "perfect" results.
That is to say, other factors affecting edge quality off the cnc machine are greater than the segmentation effect. I suppose the goal would be that the peaks between any two chords along the curve should be less than 1/32nd or maybe 1/64th.
As a simple exercise, one should be able create a partfile to cut a circle by following these steps
Draw the circle on the red-green plane and make a component out of it.
Set the z-zero to your material thickness: menu select Plugins->Zomadic Tools->Zomadicam->set z-zero
Select the circle component and menu select Plugins-> Zomadic Tools-> Zomadicam-> Transform selected Geometry to Toolpath
Select the new toolpath group generated from step 3 and menu select Plugins-> Zomadic Tools-> Zomadicam-> write selected Toolpath Geometry to partfile
I'm working on incorporating Shopbot's built in curve commands for arccurves when appropriate but it's tricky when the curve has been scaled in some fashion.
[Rob]