lidmaster?

i have one and they work fine. the principle is pretty simple and, therefore,
reliable: one end of the calipers measures the exterior diameter of a lid (or
any round piece) and the other end measure -- to the same length -- the
interior. so, you throw a lid and set the calipers, then throw the pot and use
the other end to guage the diameter, or vice versa. i don't think they are a
"wonder tool" since you can do the same thing with a stick in the studio, but
they can be handy at times.

my "lidmaster" calipers also have a way to adjust the center pivot pin to
enable shrinkage to be considered. you can use the "shrunk" pivot and measure
a fired pot and get the wet lid size.

handy concept, but i've yet to use it.

steve




Subject: lidmaster?
From: (SpunMud)
Date: 7/14/2003 8:21 PM Pacific Daylight Time
Message-id:

i have one and they work fine. the principle is pretty simple and,
therefore,
reliable: one end of the calipers measures the exterior diameter of a lid (or
any round piece) and the other end measure -- to the same length -- the
interior. so, you throw a lid and set the calipers, then throw the pot and
use
the other end to guage the diameter, or vice versa. i don't think they are a
"wonder tool" since you can do the same thing with a stick in the studio, but
they can be handy at times.








steve graber

I just bought one and noticed that it can help in calculating shrinkage. I
haven't tried it yet.

i have seen these calipers in ceramics monthly from time to time, but also in
aftosa's catalog, aardvark (my best local supplier - santa ana california usa),
and laguna clay.


i acquired my tool with a batch of equipment i bought from a school that
dropped their program long ago. a VERY nice way to get set up fast & cheap if
you can find another school that dropped their program.

see ya

steve







Subject: lidmaster?
From: (Marmaj40)
Date: 7/19/2003 9:03 AM Pacific Daylight Time
Message-id:

Steve: Where did you purchase this "tool"?
I just had a lid (handbuilt on a thrown bottom) crack in ^6 firing. I want
to
make another. I throw the flange and attach it, so this would come in handy.
Thanks
Martha








steve graber