Quote Originally Posted by AlanMJackson View Post
With help and ideas from the forum I've tried some experiments today and found I can get feed rates of 400mm/sec but the surface finish is poor. So I've written some drilling gcode that feeds at 50mm/sec to break the surface for a few mm then goes to 400mm/sec for the rest of the drill cycle. Which means I've halved the program time and I'm now doing a metre in half an hour.
Hi Alan,

That is good news i'm glad your getting somewhere with it, I'm now wondering if you could go all the way through with the holes but on the last few mm drop back down to 50mm/sec and hope for the same finish as the top?

.Me