Help! > Machines, Tools and Fixtures
Parting off - Left over nib
Jim:
Is there a way when parting off to have the left over nib (that at least I always get) stay on the piece that's in the chuck and not on the piece that's been parted off?
I've tried adjusting my parting tool every which way over the years and never managed to have that nib not end up on the parted piece.
Anyone have any hints?
crueby:
I always get the same thing, I think its since the cut off piece flexes away before the cutter is all the way through the bar. On the band saw, same thing as the free cut off piece falls away at the end of the cut.
Twizseven:
Nikcole Mini Systems do some very nice parting and grooving tools the indexable carbide tips are as thin as 0.7mm and can be obtained for right hand or left hand holders. The actual tips can cut a flat bottomed groove or can cut minutely tapered so the pip can be on the part held in the chuck or on the piece parted off.
I am very impressed by them and I use the 8mm square holder on my Cowells lathe. I have the next size up holder for use on Myford.
Colin
Charles Lamont:
With an HSS parting blade you can grind the tip at a slight angle. It is handy for small or delicate parts like thin rings, but not good for a deep cut with a thin blade as it will be deflected.
Jim:
Thanks for the replies, it would be so handy for me if I could get that nib to stay on the chucked piece.
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