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Old 02-09-2012, 10:05 PM   #61 (permalink)
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I know a guy who will autococker thread ANYTHING.
I know someone that has 3/4"od 1/16" id bulk speargun band material sitting at home.
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Old 02-10-2012, 03:07 AM   #62 (permalink)
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To increase velocity in bows, you must use pulleys, or decrease the tip of the limb weight or make it more aerodynamic. I will see if I can modify my weak bow to shot paintballs.

Ty
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Old 02-10-2012, 03:13 AM   #63 (permalink)
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Or break a few things trying. Back in the 80's Sportsmansguide used to sell a dart gun that used surgical tubing to operate an air piston to shoot a dart. A paintball gun could be done that way too.

edit: Found a picture of one:
http://airgunenthusiast.weebly.com/u...92/9666971.jpg
The Mega-Dart Blowgun MX-7 Rifle and MX-5 Pistol - The Airgun Enthusiast Channel
Hah, those are super retro-cool. Love em.
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oldschool play is about sportsmanship and respect, oldschool gear is available on Ebay.
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Old 02-10-2012, 12:57 PM   #64 (permalink)
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Just a thought:
Unidentified Slingshot Gun - The Airgun Enthusiast Channel
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Old 02-10-2012, 01:23 PM   #65 (permalink)
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I'd rather run with an air plunger, Mount it right behind the ball, put a poppet between them and set the spring strength so that the poppet opens once theres a couple hundred psi in the chamber. Basically running a cocker valve with the air going backwards. It would be more efficient to use a pcp but we're not using actual air so I dont think it would matter (though you could reduce draw strength if you did that).

So what if we're compressing the air at 30% efficiency, you wont make a bow design that can reach 300 fps spring velocity any more efficient.
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Old 02-10-2012, 04:44 PM   #66 (permalink)
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Links relavent to your interests:

Common low energy crossbow found for cheap online, at yard sales, county fairs, military surplus, etc.:
Homotron Deal Of The Day: 80lbs. Pistol Crossbow, $19.97 - Homotron.net

Novelty paintball 'crossbow' with unknown (likely low) max shot energy/velocity:
Predator PR9000 Paintball Crossbow - Toy-Gun.com

Marshmallow Crossbow to serve as donor?
Marshmallow Crossbow | SportsVibe

Make it semi-auto while you're at it?
New self-cocking crossbow creating a buzz* - Outdoors - The Charleston Gazette - West Virginia News and Sports -
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Old 02-10-2012, 08:46 PM   #67 (permalink)
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^ If this is spam, then we've finally reached the point where spammers are making positive contributions.

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Old 02-11-2012, 08:39 AM   #68 (permalink)
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Thought you would appreciate the format.
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Old 02-16-2012, 01:32 PM   #69 (permalink)
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Kilroy. your indeed a awesome spam bot.
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Old 02-16-2012, 02:25 PM   #70 (permalink)
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The marshmallow crossbow has the right idea...
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oldschool play is about sportsmanship and respect, oldschool gear is available on Ebay.
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