MatthewZS
Member
So I've got a brand shiney new collet chuck and a drill chuck for my tail stock and I make my first few tries at drilling a blank on the lathe. I'm running into one bit of strangeness that I can't quite put my finger on however:
The final hole thru the blank ends up flared like a trumpet horn. Not much, but enough so the brass tube fits well along it's whole length except for a few millimeters right near the end. Suffice to say this causes a few difficulties the details of which I won't bore you with unless you want.
1) I am using a center bit to start a PRECISELY centered hole.
2) I've tried different bits, they all seem to do this.
3) Tailstock and headstock appear lined up correctly to one another.
4) If the drill bit is wobbling, I can't see it.
Mind you the hole isn't out of round, it appears round as best I can tell.
Any ideas?
Thanks.
The final hole thru the blank ends up flared like a trumpet horn. Not much, but enough so the brass tube fits well along it's whole length except for a few millimeters right near the end. Suffice to say this causes a few difficulties the details of which I won't bore you with unless you want.
1) I am using a center bit to start a PRECISELY centered hole.
2) I've tried different bits, they all seem to do this.
3) Tailstock and headstock appear lined up correctly to one another.
4) If the drill bit is wobbling, I can't see it.
Mind you the hole isn't out of round, it appears round as best I can tell.
Any ideas?
Thanks.