Nathan the Machinist
KnifeMaker / Machinist / Evil Genius
Moderator
Knifemaker / Craftsman / Service Provider
- Joined
- Feb 13, 2007
- Messages
- 18,941
I had a lesson early on when i first start out as a machinist. i was have awful time chatter or noise on pieces i was parting or cutting off in a lathe. the young gentleman that was sweeping the shop, said "Jim try slowing it down". The janitor was giving me advise. Well he was right.
I always remember that lesson.
That's the problem with machining advice from the janitor. Just because it works, doesn't mean it was right.
I don't know about you, but a lot of people are afraid to push parting tools for some reason. Try feeding harder, not turning slower, to get rid of that chatter. It shouldn't squeal, though sometime when you do it right it will sound like sizzling bacon. If it smells like sizzling bacon, you're standing too close...
I'm sure you know this, but use the minimum amount of overhang, make sure the sides aren't rubbing and I like to put the parting tool on dead center - though some people like it just below.
And I apologize if you already know all this - I don't know what your experience is.
But really the point I'm making is, just because something works doesn't mean you're doing it right. Just because you can sell a knife for $250 doesn't mean you're making knives that should be selling for $250.
If a master machinist were to walk over and give you some turning advice - you would listen to it. I think if a master knifemakers tells you your knives need work before you should be charging that, you should listen, not defend yourself.
Just my .02. I mean no offence.