"mac davis" wrote in message
...
SO, it sounds like I missed one thing when checking the chuck.. even
though it appears to be running true, I'm basing it on what I'd call
in/out of round, but not "wobble" factor..
I'll check the flatness/alignment of the jaws this morning.. THANKS!


Some of the same problems when gripping, as you can see. Can't fit without
distorting the wood, and the symmetry of the serrations makes it a 50/50
proposition if they'll push away from the shoulder or draw toward as the
wood deforms. Great thing about dovetail is it draws only toward.

Push up tight against the front of those things and _then_ begin to tighten.
To confirm good clean faces, just touch the jaws to the tenon while pushing
against the shoulder with the tailstock and confirm you're concentric.

On the up side, you can start bowls easily on these, as I do with my pin
jaws, and they should never fly off the lathe like those spur-centered
starts do. Get some dovetailed jaws like
http://www.oneway.on.ca/chucks/accessories/no2_jaws.htm and your problems
will disappear.