Hi Michael ..

I did a little more experimenting. The Rhino system does work pretty well for most situations for dimensions of 3d objects ... have to rework some of them if rotating the view.

But, in the best of all possible worlds one could toggle to get paper face for dimensions (like Sketchup) and text (with text and dimensions text sizing options).

ViaCad is more like Rhino ... I still find ViaCad a little clumsy to work with but, I suppose that is because I spend little time there.

This sounds like a lot of work so I don't suppose you'll get very far with it very soon. I know it is not top priority.

cheers,
eric