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Posted to rec.crafts.woodturning
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bowls
Derek Andrews wrote:
Ralph wrote:
Derek, Why can't you hold a bowl with an in-turning rim on cole jaws?
Sorry. I was only thinking of one specific case, and then generalised.
What I should have said was that cole jaws do not suit all rim designs.
With the buttons supplied with cole jaws you need to be able to grip the
rim at its highest point (relative to the base), or very close to it. If
that high spot isn't on the inside or outside edge of the rim, there is
nothing there to grip, at least with the cole jaw buttons supplied.
An example is this bowl:
http://www.seafoamwoodturning.com/Shopping/BB_bowl.htm
I have wooden extenders that I fit to the cole jaws. They fit around the
outside of the bowl and grip it very securely so I can turn at
reasonable speed while having full access to the bottom of the bowl.
Gotcha.
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