Susan P on thu 6 apr 06
Cannot find the books where I have seen this - could it be a relative of a
jig or jolly?? a moldable profile is cut into an UNKNOWN MATERIAL and it is
pulled through a chunk of clay to create the symmetrical form that will be
the clay master for a plaster mold....
Forgive incorrect terminology - but what I want to know is what material ca=
n
be used? Must it be metal or can masonite work? Thickness? And knowing the
correct name for the method would be cool too...
TIA
Susan near Seattle
Lynn Goodman Porcelain Pottery on fri 7 apr 06
When I did this in college, we made the template from a metal plate
backed with plywood. They both had the desired shaped profile cut into
them. The metal plate extended a tiny bit past the wood, and was what
did the cutting of the form. There was one template to cut the mold,
and one to shape the clay while it was in the mold, both attached to a
jigger/jolly press. You can also make one to use by itself (not
attached to anything), to drag along and make a long, shaped strip,
like moulding.
If you try to make the cutting edge from something softer than metal,
it won't cut very well, and won't last past a couple of uses.
Lynn
On Apr 7, 2006, at 1:56 AM, Susan P wrote:
> Cannot find the books where I have seen this - could it be a relative
> of a
> jig or jolly?? a moldable profile is cut into an UNKNOWN MATERIAL and
> it is
> pulled through a chunk of clay to create the symmetrical form that
> will be
> the clay master for a plaster mold....
>
> Forgive incorrect terminology - but what I want to know is what
> material can
> be used? Must it be metal or can masonite work? Thickness? And
> knowing the
> correct name for the method would be cool too...
>
> TIA
>
> Susan near Seattle
>
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Lynn Goodman
Fine Porcelain Pottery
548 Court St.
Brooklyn, NY 11231
718-858-6920
Cell 347-526-9805
www.lynngoodmanporcelain.com
Marcus Lisle on mon 10 apr 06
On Thu, 6 Apr 2006 22:56:09 -0700, Susan P wrote:
>Forgive incorrect terminology - but what I want to know is what material can
>be used? Must it be metal or can masonite work? Thickness? And knowing the
>correct name for the method would be cool too...
Hi Susan,
I have created profile shapes for shaping clay on a wheel (for a limited amount of use), using only
bass wood which you can find at most art supply or hobby shops. This can be cut by hand with a
jig saw and sanded easily.
I am very intrigued by the jolly/jigger process, and plan to explore it in the future. I am thinking of
trying 1/8" or 1/4" cast acrylic or plexiglass.
If you are cutting this material with a saw, you should wear a respirator. The best tool I have used
for cutting custom shapes out of cast acrylic is a computer controlled laser cutter. You draw the
shape you need in a vector drawing program, and then computer sends the file the cutter like it
would to a printer. The laser then does all the work for you - it makes a few passes and voila -
you have a perfect custom shape and no need to even sand it!. I had access to two laser cutters at
the Boston Architectural Center where I was teaching. Maybe you could find a businees in your
area that uses such technology and could make a profile shape from a line drawing you provide
thm.
Good luck,
Marc
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