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Wax molding hints wanted

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Wax molding hints wanted

Unread postAuthor: boyntonstu » Mon Oct 05, 2009 4:35 pm

I would like to place a glass marble into a wax mold to fit the barrel.

Are there some time and labor saving methods that you have discovered?

Mold release?

Wax melting and pouring hints, etc.?

I would like them to look like these molded by hyldgaard:

http://i298.photobucket.com/albums/mm24 ... G_2414.jpg

BoyntonStu
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Unread postAuthor: CS » Mon Oct 05, 2009 6:23 pm

Mold rubber? Tap Plastics - How to make a mold box

US Composites sells a few kinds (link)

First make a master copy, gluing it to an acrylic base like in the video. Then using a paper cup to make the barrier around the pattern.

Or making something like this?(waxmold.JPG) Noticed the marble is resting on a taper as to center it, then the wax encapsulates the ball during the pour. You could machine that taper in the bottom or simply hand form a piece of clay to fit into your barrel mold.

Also mold release will probably have to be used. I know you can get by without it sometimes.
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waxmold.JPG
Cross-section. The body of the mold being made from barrel material.
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Unread postAuthor: Moonbogg » Tue Oct 06, 2009 12:19 am

Pneumatic bb gun?
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