Chucks

[John Terefenko]

http://www.pennstateind.com/store/CSC3000C.html?mybuyscid=3287263436

I have the Barracuda2 chuck system but i am looking to add a chuck to my arsenal? What chuck should it be??? Also have a collet chuck and these have served me well.

I was thinking of one of those adjustable flat chucks but i do not know the name of it. It has the rubber coated rods that are adjustable to hold plates and bowls. Anyone help with the name and is this a good idea and if so what is a good one??? Thanks

 

[fgvanatta]

Sounds like your talking about a Longworth Chuck. The only way to get one of those is make it yourself - and then they aren't real great. There is an all steel version that was being made for a while but it is no longer in production.

Otherwise, just get the Cole jaws for the chuck you have.

 

[Bill Boehme]

http://www.pennstateind.com/store/CSC3000C.html?mybuyscid=3287263436

I have the Barracuda2 chuck system but i am looking to add a chuck to my arsenal? What chuck should it be??? Also have a collet chuck and these have served me well.

I was thinking of one of those adjustable flat chucks but i do not know the name of it. It has the rubber coated rods that are adjustable to hold plates and bowls. Anyone help with the name and is this a good idea and if so what is a good one??? Thanks

I am partial to the Oneway Talon chuck, but there are several brands and each has its following of fans. The main reason that I like the Oneway is that it has ridges on the jaws that help in gripping the tenon of a turning. However, now most all of the brands offer chucks with your favorite type of jaw. The thing that you are describing with the flat plates goes by a few different names depending on the brand, but they are all basically the same. They are accessories that go onto the chuck to replace the standard jaws. Oneway calls theirs Jumbo Jaws and they come in three different sizes. The rubber bumpers can be placed in different holes depending on the size of the bowl that you want to mount. On the Nova chuck, they are called Cole Jaws. I don't know about the Chinese knock-offs.

I have found that I rarely use the Jumbo Jaws, but they are very good for a beginning turner. If bowls have been allowed to warp (as if ... they ask for our permission 😀) or have natural edges, etc., then the Jumbo/Cole jaws are not of any use.

 

[Vaughn]

Sounds like your talking about a Longworth Chuck. The only way to get one of those is make it yourself - and then they aren't real great. There is an all steel version that was being made for a while but it is no longer in production.

Otherwise, just get the Cole jaws for the chuck you have.

I think he's talking about Cole jaws, or what PSI calls flat jaws.

Dennis, I think the PSI flat jaws are the only ones that'll fit your chuck. They can also be made out of plywood or other sheet materials, but I'd think the metal ones would be more stable.

If you're looking for a new chuck altogether, I don't think you can go wrong with Teknatool (Nova), Oneway, or Vicmark. Any of them are high-quality tools.

 

[John Terefenko]

I think he's talking about Cole jaws, or what PSI calls flat jaws.

Dennis, I think the PSI flat jaws are the only ones that'll fit your chuck. They can also be made out of plywood or other sheet materials, but I'd think the metal ones would be more stable.

If you're looking for a new chuck altogether, I don't think you can go wrong with Teknatool (Nova), Oneway, or Vicmark. Any of them are high-quality tools.

That is what I am looking for
http://www.pennstateind.com/store/CJAWFJ2.html

That should do for now.

 

[Joe Greiner]

For Cole jaws, Jumbo jaws, or DIY Longworth, you can replace the bumpers with larger ones. Rubber "corks," with central holes are available at homebrew shops. White, too, for non-staining. Check your Yellow pages or Google [homebrew].

In either case, wrap some tape (filament best) around the bowl to the back plate, and use tailstock assist until the final cut.

 

[MichaelMouse]

I have a set of Cole Jaws, but rarely use them. I've taken to making holds which do not require any repairs after turning. Mostly that means that you don't want teeth on your jaws to chew the wood up. That means dovetails to wedge, not teeth, so a set of good dovetail jaws for the chuck you have would be number one, or a chuck like the Novas if you can't get something similar. Photos of the B2 jaw sets don't encourage me that what you have allows good dovetail jaws.

I was going to mention a use for the Cole jaws in providing a means for counterbalancing off-center work, but I note that this brand does not allow simultaneous mounting of Cole jaws and regular. If you're driven to buying another chuck, consider that option.

 

[Bill Boehme]

The main trouble with trying to balance off-axis turnings is that one never knows the cross products of inertia as opposed to statically balancing a turning to shift the center of mass to the axis of rotation. Also, the cross products are dynamically changing while mas is being turned away. For small turnings, trying to balance is not necessary. For something that is large, nothing can be done at the chuck anyway for an offf-axis center of mass hanging out in some distance in front of the chuck beyond simple static balancing.