pwnchu

http://www.amazon.co...n/dp/B000GL1NR2



The pump and spring ball valve are taken from the max d 2000. It works well enough, although the pump is kind of slow, and one of the ball valves had its expansion springs break (but i had gotten 2 for $5 a long time ago from target. I saw 1 for $5 there recently). The bladder is from another gun.


This picture kind of sucks, it's supposed to be a segment of pvc with some tape covering the end. You poke a hole (needle size is fine; high pressure stretches the hole larger) in it, which serves to keep air from going in too fast. The pvc segment goes between the compression couplings, with the taped side closer to the bladder/pump to allow an air reservoir.

It does well at high pressure, judging from the hiss, although it takes a bit longer to refill at low pressure. It refills fast enough for hand reloading, although i think at high pressure you can use it with a clip as a crude semi auto weapon (unfortunately i have neither the tools, supplies, nor the competence to build a clip).

I made the barrel short because i nerf indoors, and plus people i play with would get mad if it were more powerful anyways. It's not straight because i suck at gluing.

edit: I guess i should follow the example of not posting ranges.

Has anyone tried something like this before? I would assume yes because it's so simple, but I havent seen anything about it.

This is a way to single a big bad bow/ 3b/ bbb. They're not as good as the angel bbb or many of the other ones but i figure people might want to know about it. The plunger etaping may come in handy even if you would like to use better barrel materials.


-do the whole AR drilling as everyone else does (take out the front piece and spring, then drill a hole through the center of the back AR).

-cpvc barrel: cut most of the orange barrel off (not all, because you can force cpvc through it, and the tight fit stabilizes the new barrel). Then shove some cpvc down it from the outside end until the barrel touches the AR that you drilled. I kept my barrel short (3") because i'm using stock darts (gasp) and no nesting (gasp again).


picture taken from the vastly superior abbb mod writeup.

leave some of the cylindrical barrel part, don't cut it all off like here.

-wrap 3 loops of etape around the widest part of the plunger. The plunger is that white rubbery thing. Your darts can now be vacuum loaded. (hopefully you won't get any stefans stuck in because the AR will block them.

I got a big bad bow recently, and did the crayola mod, front AR removal, back AR drilling. I'm not mechanically adept enough to do the angel mod (i made a little ammo holder out of knex and jammed it through the front sight, holding 7 darts, so i'm happy enough with that), but i was thinking that the front grip pretty much begs for a trigger. Again, being the undedicated noob, i will probably just tie a maverick around it and call it a day until a better cheap rapid fire weapon is on the market.

Basically you could use the bbb as a long range weapon, and if anyone rushes you you use the front gun to defend yourself. Ideally you'd have a chainblazer there. Push inwards to fire the chainblazer, pull outwards to cock the bbb.

Hopefully someone might find this idea useful.

So i was playing around with taping string to two darts. The idea is that if any part of the string hits the target, the bola will wrap around and hit it (plus the bola will be spinning from one dart to the other). Or it can whip around cover. I encountered several problems with this:

-First of all, you have to have a powerful enough launcher to consider more than one dart.
-You have to put both of the darts in the barrel. Otherwise if one is dangling it will make a severe bias towards the ground which makes it suck.
-Doing this, both darts will fire relatively precise, so that you won't see the string stretch that far.
-It's a pain to get the darts in and keep the string in a good position. Wrapping the string around the dart works ok.
-The string only spins in one dimension. You would need a third dart or a way to get the bola to rotate in the 3rd dimension in the air.
-The bola, not surprisingly, has a much shorter range than firing two darts, probably cause the way each dart leapfrogs the other.

My conclusion is that it would be better just to fire two darts (even three may have a better range) than to fire the bola. Maybe there is a way to accomplish this with a very powerful launcher and 3 darts.

So I'm using a homemade (30 inches of 1/2"PVC-about 9 cubic inches, using the pump and valve from a SS MaxD2000). For fear of bursting the goop (and a leak); i'm only pumping it to about 3 atm or 45 psi (estimated based on the size of the pump and the times i usually pump it).

Anyways, by accident i found that adding water into the tube gives more power to the dart. I'm only adding a bit of water, so it wont affect the volume much. Another clue is that right after the water is added, firing it doesnt release a spray of mist. You have to fire it once or twice before that.

Would anyone know chemistry-wise how this works? (and hopefully maybe some people will find this useful)