Recommend a set of jaws please

[George Speed]

Chuck is a Nova G3.

Wish to hold:
1.5" square x 6" long object, both wood and Resin casting. (spindle turn)

At a minimum of the 6" length, 1 inch to 1-3/4 inches would be in the Jaws.

Want to be able to turn/bore the interior of the piece

Minimum square , 1.2...1.25"

thank you!

 

[Joel Daniels]

I have these jaws on a G3: Nova 35mm Spigot Jaws. For a tenon: 1.2" -> 2" / for a square stock: 1" -> 1.7" / for a mortise: 2" -> 2.8".

 

[Bill Blasic]

The nova jaws I would recommend woul be the Nova Mini Spigot, the ones with two screws per jaw. Similar jaws that only have 1 screw seem to bend easily. Or yo could try (which I would try) are the NCK-3.75Z-6034 Pen Plus jaws as they are pretty stiff looking and I might even buy two pair. The Nova is $53 the BMWood NCK are $30 and to pair would be $60. 4 of the NCK would be the sturdiest in that size range. Prices are Amaz.

​

 

[Joel Daniels]

The nova jaws I would recommend woul be the Nova Mini Spigot, the ones with two screws per jaw. Similar jaws that only have 1 screw seem to bend easily. Or yo could try (which I would try) are the NCK-3.75Z-6034 Pen Plus jaws as they are pretty stiff looking and I might even buy two pair. The Nova is $53 the BMWood NCK are $30 and to pair would be $60. 4 of the NCK would be the sturdiest in that size range. Prices are Amaz.

​

I do have the BMWood NCK Step Jaws and NCK Pin Jaws (both also mounted on G3 chucks). However, their specs are:
NCK Step jaws: Tenon: 0.1" -> 1.1"
NCK Pin Jaws: Tenon: 0.5" -> 1.3"
I don't have the Nova Mini Spigot, but according to Nova's Jaw Travel Table: Tenon: 0.3" -> 1.1"

I don't think these 3 jaws will open to hold a 1.5" spindle. Maybe if you shrink the tenon they would work. And, I will add, I'm a big fan of the BMWood jaws. They are quality built and priced reasonably. I have 4 sets of their jaws.

Food for thought...

 

[George Speed]

Thanks so much!

I do like the dimensions of the Nova Jaws. looks like a perfect fit.
Sad they can bend!

 

[Joel Daniels]

Thanks so much!

I do like the dimensions of the Nova Jaws. looks like a perfect fit.
Sad they can bend!

The Nova Spigot Jaws that I have and showed have 2 screws per jaw. They are very heavy duty - I don't see how they could ever bend. If you are tightening the jaws enough to bend these - you'll be crushing and breaking the wood way before they bend. I think Bill was referring to other brand jaws that have a single screw (but I'll let him explain).

 

[George Speed]

Ah yes, I see that now

check this out, LOL!

Order total:
$30.84

Swweeettt

 

[R Henrickson]

I have these jaws on a G3: Nova 35mm Spigot Jaws. For a tenon: 1.2" -> 2" / for a square stock: 1" -> 1.7" / for a mortise: 2" -> 2.8".

I really like these jaws, especially for spindle turning but for other uses as well.
I don't understand why you want to have 1" or more of a total 6" length in the jaws. Left square or with a tenon much less than 1/2" is more than enough.

 

[George Speed]

Appreciate the question.

I am not at all familiar with workholding a square end.
Depth of the tenon, I had no real clue what is safe and secure. Especially so when after all outside turning is done, and its time to attack the Interior, the piece will be supported only at the chuck.
Most of the application will be poly resin castings. Possibly epoxy at some point.
These will be game calls.

So I presented a worse case "size"

 

[R Henrickson]

*If a tenon and its shoulder are shaped properly*, even 1/4" ought to be more than you need. What sort of game calls are you making?
I do a lot of spindle turning, much of it starting with 1x1 stock, with lengths up to 15".
I have no experience with poly resin or epoxy turning -- I simply can't tolerate the fumes produced during turning (yes, I do have respiratory reaction to being nearby).