Lh thread 1x8?

[Bob Hallowell]

I just picked up a new lathe (stealth gloat). it is an old prototype of the delta dl-40, it did not have the factory stand nor the vfd drive (I will be putting on on).

you can turn on the outboard side of the headstock but it uses a lefthanded thread 1x8. I was wondering if anyone new of anyplace I could find an adapter to make it a right handed thread so I could use my chuck.

thanks,
Bob

[Pete Jordan]

Bob,

Congrats on the lathe! I would try this place for an adapter. http://www.woodenpost.com/products/change_spindle_size_on_lathe.htm
They say you can call in they don't have what you need.

[Mike Vickery]

Maybe I am confused but if I understand you right.
I do not think you want to do that you want to change you chuck insert to a LH thread if you are turning outboard (unless you have reverse on your lathe) other wise the chuck can unscrew itself. If you have reverse ignore this.

[Bernie Weishapl]

Bob I was just going to ask the same thing. Don't you want to leave it left handed???? I would think when the lathe stopped it could spin the chuck right off. Or am I missing something here.

[Paul Heely]

If the chuck has a grub screw, I think that's what is called, that can be tightened down to lock the chuck to the threads of the spindle then won't that solve the spin off problem?

[Bob Hallowell]

I think your right but I hate to buy a new chuck just to used it outboard plus I don't know if I could find one of those.

Bob

[Gordon Seto]

The whole idea of having LH thread on the outboard side is that it will self-tightening when the lathe is running forward direction on the inboard side.

You don't want RH on the outboard side if the lathe doesn't have reverse.

I have seen chuck insert that has both RH & LH threads.

Gordon

[Mike Vickery]

What kind of chuck do you have?
I know the Oneway chucks you would just need to change out the insert for it not buy a whole new chuck. Of course changeing the insert back and forth will get old in a hurry.

[Bob Hallowell]

Right now I have a psi Barracuda which I liked, But I might have to get the talon or stonghold.

Thanks,
Bob

[Kim Ford]

Oneway makes a 1 X 8 chuck adapter for both the Talon # 0227 and the Stronghold #03237 that are made for both RH and LH threads. They actually thread the hole with both threads so you can use it on either end of the headstock and do not need to change the adapter. I have faceplates threaded this way and they work great.