Dongle,
It is a joy seeing someone trying to learn something new.
Let's leave the "4th" axis question out of this and focus on the angled mounted head design.
Most tool paths are generated based on a specific tools design. I suggest you research the following topic: Cutter Compensation (Cutter Comp). I would offer more but I don't want my point of view to hamper your efforts to learn.
Keep it up,
__________________
JR Walcott
Georgia Machine Tool Resources, LLC |