"Ken Wilson" wrote in message
...


And would a different internal shape be better for bowls such as the
serrated one on the type H Medium gripper or the dovetailed ones on the
Type A ? (eg the kids don't know what to get me for xmas...)


Ask over at rec.crafts.woodturning. But I'm an inside dovetail guy myself.
Allows me the freedom to finish the bottom before I reverse to hollow. You
can do a few cutsies or just leave the recess, wherever the muse takes you.
http://i35.photobucket.com/albums/d1...e/bb09ce26.jpg

The serrated types have their own problem set. They gnaw the tenon, which
itself steals depth from the bowl, and they're a PITA or impossible to get a
bowl recentered once they do. With smooth jaws the force is widely divided,
so you don't exceed the elastic limit of the wood.

Remember, you're not holding with a "grip" as much as you're holding with
the nose of the jaws bottomed in the recess or against the shoulders with a
dovetail tenon. Sort of like flat work, the dovetail just holds it from
being retracted, the shoulder or end bears the load.