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I need some suggestions for about as un-primitive a bow one could make...

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bryan irwin:
didn't some one post a pic of a bow made frome pvc pipe a while back.

skyarrow:

--- Quote from: knightd on April 22, 2010, 03:28:43 pm ---I ain't never cut any of the plastic boards thin but in 2x6 it seems stout.. If you like the PVC idea. You could cut a strip out of a thick walled 12" diameter or larger pipe that would be more than enough to get the # you are looking for.. And it would be almost flat..

--- End quote ---

it will caust alot to get but a good SDR17 casing pipe will do like the 14 inch is over 1/4 in wall thickness

skyarrow:
been doing some thinking pvc pipe is springy and if you fill the inside with somthing springy maybe you can make a bow like the one that was used in the predator  movie when Arnold banded the vines to make a bow

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Dane:
Perhaps a “panda” type bundle bow made with carbon or fiberglass fishing rod material? That would be a very quick bow to build, and all man-made industrial materials, maybe with that Gorilla tape or duct tape to hold the bundle together.

What about a ballista bow? In TBB V4, Tim Baker shows one, basically a torsion frame the archer holds in the middle and fires as a hand held shooting device.

You could build the spring frame out of some sort of plastic / manmade material, lexan or Plexiglass?, use parachute cord or nylon rope for the springs, plastic washers and tenons locked with plastic pins to twist the rope springs, and use some soft of plastic material for the bow arms.

There is a simple formula for designing catapult spring frames, based on the diameter of the torsion spring. I can post that if it may help you.

Also, maybe use artificial sinew in some way, certainly for the bow string, maybe to even lay courses on the back of a bow, something like a real sinew job.

If you win using my ideas, I get half of the non-prize :)

Dane

recurve shooter:
when i was a little kid i thought it would be a good idea to get a pvc pipe, heat it, and flaten it, then use that for the bow. after being heated that much, when cool would it go back to its original springyness and what not?

anyway i want to see this contraption when you get it done.  ;D

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