Cheers Neale.

Yeah, I have Cut3D - another excellent piece of software from Vectric - but the way that it generates its cut files isn't exactly practical (and very long-winded) for simply adding a couple of fluted lines to a face.

Heh - I don't fancy scrolling down through thousands of lines of code and manually adjusting z-depths...

Perhaps a G19/G18 arc might be worth exploring?

http://www.cnczone.com/forums/g-code...rc-g-code.html

Hmm, but thinking about it they're in X/Z or Y/Z so anything other than a straight vertical or horizontal line isn't possible...