how to take mirror in NC DRILL file

[jawad ul islam]

hello when i create gerber file in altium and i tick mirror option to fabricate on my CNC its work in gerber but i can not apply mirror to drills ..i followed the method as given on altium forum to tick mirror option in drill drawing but still nc drill is wtih out mirror,,,is there any setting required .thanks in advance

[robertferanec]

Drilling file is base on coordinates. I would expect your CNC machine software may have some options to set origin and possibly mirror the drill file? If nothing works, I would probably try add "-" in front of the numbers and I would move the origin.

This can also help: https://www.edaboard.com/showthread.php?t=129762