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Chucking Square Stock

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Forum topic by ScrubPlane posted 212 days ago 565 views 0 times favorited 6 replies Add to Favorites Watch
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ScrubPlane

187 posts in 791 days


212 days ago

Topic tags/keywords: tip question lathe turning

I utilize the Teknatool SuperNova2 lathe chuck with a variety of jaws. The instructions for which and many of the YouTube instructional videos I’ve seen make note of the ‘dovetail’ configuration and how that grips the stock. My question is regarding when someone clamps square stock into the chuck where I don’t see a pre-cut dovetail profile.

Can anyone explain why you cut a dovetail tenon when gripping a bowl but it doesn’t seem to be required when gripping something like a square stock vessel? I’ve also seen this configuration without the support of the tailstock.

thanks…John


6 replies so far

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Marcus

1040 posts in 615 days


#1 posted 212 days ago

I’m not sure it’s “required” on a round tenon either, just a but more insurance and strength. I have not had any issues with clamping onto square stock, but if I have the extra wood available, I prefer to cut a round dovetailed tenon first.

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ScrubPlane

187 posts in 791 days


#2 posted 212 days ago

Thanks for the feedback Marcus. I want to try my ‘first’ captive ring goblet and that seems like the right technique to utilize. Merry Christmas…

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Marcus

1040 posts in 615 days


#3 posted 212 days ago

I guess I should add I always use the tailstock when I chuck square suck as well.

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Marcus

1040 posts in 615 days


#4 posted 212 days ago

Square stock…sorry, was typing on the phone!

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mpax356

43 posts in 1088 days


#5 posted 211 days ago

The Nova standard jaws are not a dovetail on compression but rather a bit of a ridge that bites into the wood. The manufacturer instructions say do not cut a groove. When you make your tenon, make sure you have a shoulder on it since that is where you get your gripping strength from.

-- MPax, Atlanta

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ScrubPlane

187 posts in 791 days


#6 posted 211 days ago

Thanks MPax…much appreciated.

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