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Pirate Cannon - A working replica of a naval cannon that fires pneumatically

Step 4Carve the Material

Carve the Material
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A few weeks prior I ordered a hot knife (Sculpting Tool) and some foam coat from Hot Wire Foam Factory.
The "Sculpting Tool" worked well but next time I would simply build my own as in this instructable

To extend the small hot knife I mounted it to a dowel rod cut to the appropriate length. The ends of the dowel ride the template and carve out the shape.

To use the jig, run the knife down the length removing the excess material. Turn the pipe, and thus the foam a half inch or so and make another pass with the tool. Eventually you have you basic shape.

A hot knife makes it easy to cut the foam but any cutting tool could work. many people use an inexpensive "Electric Knife" right out of the kitchen isle.
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Author:Part Time Chef.com
Proud Dad, Pyrotechnician Licensed in Ohio, Corporate Chef, Artist, Writer