I want to mold an object

Hi Jana,

You didn't mention how big your sphere has to be.

Back a few years ago I got interested in making some jewelry and bought a
home sand casting kit from a craft catalog. The whole kit was under $100.
The casting enclosure was about 2" by 2" by 4". I don't know if that's big
enough for you but they may have other sizes. I was pouring molten silver
into it but other materials will work

You can call and get catalogs from;

Grieger's - 1-800-423-4181
TSI - 1-800-426-9984
Bourget Bros - 1-800-828-3024

I hope this helps.

Ron formally from San Jose

Home of RonzArt - Whimsical Acrylic Paintings - Landscapes and Flowers
http://home.earthlink.net/~ronzartwork/

Home of RonzClocks, Unique Multi-CD Clocks
http://home.earthlink.net/~rondav/



"Jana Cole" wrote in message
...
I a not really a crafts person, but I am trying make a prototype of a
toy that I have a patent pending on. I have made one in polymer clay
by carving the clay after baking it.

Anyway, I wonder if there is a way to create an accurate mold that I
can fill repeatedly with a material so I can make lots of prototypes.
Something I can do in my garage.

The toy is sperical, hand-held. I would need to make the toy in
half-spheres and glue it together. Small cavities would need to be
created inside the half spheres that match exactly when the spheres
are glued, or otherwise joined, together.
Also, I need to make a thin, long slit through the sphere for a coin
to pass through.

Any ideas on how this could be done with accuracy?

j in San Francisco