I have not made the adjustable back plate so I cannot speak from
experience but I would guess you are right. It would seem that .010
would be enough adjustment for a chuck that does not have other
serious problems and would likely not be accurate at different
openings. The particular chuck I have that is a problem has .003
runout. HTH
Al Day
--- In 7x12minilathe@..., "bbftx <bflint@a...>"
<bflint@a...> wrote:
Roy and Al:
I'm making an adjustable backplate too. One thing I question
in Rick's otherwise great design is the amount of adjustment
he built in. .050" oversize on the diameter seems like too much
to me.
I can't imagine needing to adjust more than a few thou. Wouldn't
a .005 to .010" oversize diameter give a person enough adjustment?
Regards,
B Flint
--- In 7x12minilathe@..., "roylowenthal
<roylowenthal@y...>" <roylowenthal@y...> wrote:
Al,
I agree; I'm in the process of making the same one!
Roy
--- In 7x12minilathe@..., "fromday2 <aldayis@a...>"
<aldayis@a...> wrote:
Roy, I saw Rick Kruger about a month ago and one of the
intresting
things in his shop is the adjustable backplate. The idea and
execution were clever and well done. I am going to make one
for a 4" 3jaw I have. His was nice looking, the concept is
simple enough that it should be reasonably easy to do.
Al Day
