Reply by TheDane

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Posted on I doubt I'm alone in this

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5552 posts in 3867 days

#1 posted 09-20-2014 07:16 PM

No way would I consider using Cole Jaws. Jerry’s approach is the most likely to save your bowl.

I am more a fan of tenons or glue blocks than I am of mortises/recesses in the bottom of a bowl. Even with dovetail jaws and recesses, I have had workpieces turn on the jaws in the event of a catch which either throws the piece off the lathe or spins it enough that it no longer runs true.

In my opinion, you are much safer with either a tenon (which the jaws can really bite down hard on) or a glue block which performs the same function as a tenon. I am sure there are turners that have horror storied about glue blocks, but I have never had one fail. Glue block failures that I have heard about occurred when the glue block being used was either soft wood (Pine, Fir, etc,) or plywood. I make glue blocks with hard maple and use TiteBond I (red label original) that I let cure overnight.

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

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