On Thu, 2 Dec 2010 18:39:52 -0600, Kevin Miller wrote
(in message ications):

On 12/02/2010 11:21 AM, tom koehler wrote:

I really like the burl projects, and am going to have to pursue that line
some time. So many projects, so little time. Thanks again for showing me
your
segment work.

Yeah - wish they were easier to find around here. I'm too cheap to buy
'em! :-)


re the comments about purpose-made friction chucks, I have been having very
good results with a modification to my PSI bowl chuck. I bolt some chunks
of
pine to the face of the chuck plate instead of using the rubber covered
screws. I then turn a cavity the size of the vessel or other object I want
to
clamp - and then I can tighten this wooden chuck as wanted, to secure the
work. Custom turned friction chucks work good, but the care in getting just
exactly the right size is a source of frustration if you take just one
light
cut too many for that final size adjustment. Now, I just need to be close,
and the chuck is easily tightened to the work. Also, I can use this same
setup for multiple copies of the workpiece that are just not exactly the
same
size, as needed for a friction chuck. I can not justify the cost of a vac
chuck setup for my little shop (and solid spindle shopsmith)

That's a good idea. I have some flat 'jaws' that I screwed large hunks
of wood on, but the smallest step on it is too big for the inside of the
bowl. Never thought about mounting some wood on the jumbo jaws. Thanks!

...Kevin


the threads are metric. The first number in the thread designation is the
diameter in millimeters, the next number is the number of threads per
millimeter. I do not remember the bolt size now - y'gotta take a sample screw
with you to the hardware store.
tom koehler

--
I will find a way or make one.