Primitive Archer
Main Discussion Area => Bows => Topic started by: zeNBowyer on September 15, 2009, 02:03:54 am
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Have David Knight building me a bamboo IPE composite bow,
I couldn't part with my bow so I am sending him this cast i made out of plaster of paris, trying to figure out the best way to dry it now without cracking it,
i couldn't get to town for clay so I wound up using auto body repair putty to make a mold, had to be careful of the exothermic reaction of the material, so actually I don't think I will use that material again for heat sensitive materials like glue wood and fiberglass
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Are your trying to make an example to send to him of how you want your handle to be shaped? If so, next time you could try what I do. Get some Styrofoam blocks from the artificial flower section at wal-mart and carve it to the shape you want. It is really easy to carve. It's a bit messy, but no more than plaster of paris. It may not be as exact, but it's much easier. Here is a pic of one I did.
(http://i879.photobucket.com/albums/ab359/J05H/Handles-1.jpg)
I wasn't going for a perfect model. You can get it a lot smoother than I did.
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We make casts of violins often. Set it on a couple pencils or the like and let it dry on the counter......perhaps with a 75Watt bulb over it 6-8" away. Next time, talk to your dentist and get some "Yellow Stone".....casts like plaster but is ten times stronger and will cast details much better.
Piper