Hi Scott,

> One question, does it matter if you take a solid and cut everything from it vs drawing
> a closed curve outline and extruding it to a solid and then cutting from it?

It doesn't really matter how you make the base solid, a solid extruded from a closed curve is just as much a solid as any other way... I'm not exactly sure what other method of creating the solid you are asking about for comparison with extrude though...


> Also with Trim, how does it know what direction to take the cutting plane from?

If the cutting object in Trim is a planar curve, it uses the normal of that curve's plane as the projection direction.

Hope this helps!

- Michael