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big hump/slump mold

updated fri 16 dec 05

 

Vince Pitelka on wed 14 dec 05


Nettie Penman wrote:
"I guess I really pressed the limits of the ol' exercise ball. So my
question to you is, do you know of any other commonly available sphere form
I might use for a hump or slump mold or that I could get a plaster mold
from?

Nettie -
Large commercial woks are smoothly curved, with no flat on the bottom, and
they might fit the bill. I have a 36"-diameter commercial wok which has
produced dozens of giant curved plaster slump molds over the years. I
believe that this one would be TOO large for your needs, because it
represents a segment of a sphere that would probably be four to five feet in
diameter. If you live in or near a big city where there is a sizeable Asian
population, look for the suppliers that provide the cooking gear for Asian
restaurants. These are often not the normal restaurant suppliers, but
rather the large Asian markets. You should be able to buy a large
smoothly-curved wok for a very reasonable price.
Good luck -
- Vince

Vince Pitelka
Appalachian Center for Craft, Tennessee Technological University
Smithville TN 37166, 615/597-6801 x111
vpitelka@dtccom.net, wpitelka@tntech.edu
http://iweb.tntech.edu/wpitelka/
http://www.tntech.edu/craftcenter/

syrylyn on thu 15 dec 05


I've used an old globe to make a plaster mold off of. I've also found a big
plastic container that was used for a terrarium when it was discarded. It
came apart at the middle.
Sandy Meadors
syrylyn@iq.quik.com
http://syrylynrainbowdragon.tripod.com/arts.html
"Magic Happens"

dannon rhudy on thu 15 dec 05


And, depending on the depth of the piece
needed, a plastic "saucer" sled works very
well for making plaster molds. Many of them
are smoothly curved, with no flat bottom. And
cheap. They come in several diameters

regards

Dannon Rhudy
----- Original Message -----

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Nettie Penman on thu 15 dec 05


First off - thanks to everyone who responded to my question! I'm so excited
to explore all the ideas. We do have a fairly large Asian population in
Denver (only 25 miles) so a big wok can't be that hard to locate and I will
definitely investigate the giant balloon idea (the website is very
interesting). Marcia, your ideas on draping fabric opens up a whole new
realm of shapes. Each of the suggestions offered would give a different
form and I'm sure I can figure out a solution from these ideas. What a
great forum this is!

Happy holidays,

Nettie

Nettie Penman
www.architecturalelements.biz

Dale Neese on thu 15 dec 05


A walk through the local junk yard will sometime yield interesting objects
for slump-hump molds. I picked up two small satellite TV dishes. Pay for
them by weight, next to nothing, remove LNB hardware and you're ready to
either slump or cast plaster for a hump mold.

Dale Tex
"across the alley from the Alamo"
San Antonio, Texas USA