Quote Originally Posted by Sliding Head View Post
BTW that project took me about 4 months and was canned because of the tool wear and the taper in the hole which used all of the hole tolerance in about twenty holes. Even though I got tool life (it was still cutting up to 80 holes) the hole geometry was poor. The ultrasonics and laser methods weren't acceptable at the time.

Good luck
D
So Boyan the Lesson I took from that excellent post was DONT BOTHER because your DIY machine and Spindle just aint going to cut the mustard. . . This is high precision work that requires high precision machine and not just good tooling.!