LAW / Nerf / Water Balloon / Grenade Launcher

[THE JEW (RaVeN)]

Yeah, we'd have to calc what the max force per area allowable is. I presume we'd use a paintball at 285fps as the reference point?

Removal of compression rings or a regulator/dump tank seem to be the best bets to control velocity. I imagine a longer tube would also slow it down a bit. Good luck adding/cutting it on the fly, though. If one couldn't "chrono" it in, maybe it would only be allowed to be a mortar? Ie. max speed would be gravity freefall.

[[PX]Kal Bob]

I think the 10 foot rule is pretty good,
Personally I am not going to waste a rocket if they are that close anyway lol.

Have you tested its ballistic range?

[[PX]IronFist]

Not yet. We can do long range testing on Saturday.

[THE JEW (RaVeN)]

Ballpark-wise, what was the cost on each launcher? Thanks.

[[PX] Nebuchadnezzar]

About $20 if you already have the PVC primer and cement. they are about $3 each.

[[PX]IronFist]

About $20 if you already have the PVC primer and cement. they are about $3 each.

That's probably a little conservative if you include the paint and what not. Possibly more like $30.

[THE JEW (RaVeN)]

If you want to get really serious about your own paint:

Code: Select all

Component__________________________________Percent by Weight
Polyoxyethylene (20) sorbitol monolaureate    94-99%
Coloured pigment                              0.5-5%
Suspending agent                              0.3-3%
antifoam agent                                0.05-0.80%

http://haveblue.org/tech/patents/US004634606.pdf

Keep in mind that's Nelson paint so it will be a b!tch to clean.


Hand Grenade patents:

Tipmmann "Bouncy Betty" (stays true to KISS principle):
http://haveblue.org/tech/patents/20060156943.pdf

Process and slingshot launcher:
http://haveblue.org/tech/patents/US006450100.pdf

Paintball mine (looks more like a mine than grenade to me):
http://haveblue.org/tech/patents/US006453819.pdf

Re-usable grenade (shows promise):
http://haveblue.org/tech/patents/US006871594.pdf

Grenade with micro-processor:
http://haveblue.org/tech/patents/US006965542.pdf

Rap4:
http://haveblue.org/tech/patents/US007059316.pdf


Good ideas to use as long as you don't sell them.

[[PX] Nebuchadnezzar]

About $20 if you already have the PVC primer and cement. they are about $3 each.

That's probably a little conservative if you include the paint and what not. Possibly more like $30.

Paint is optional, and it's something people might already have.

[THE JEW (RaVeN)]

Nerf link (has a where to find locator, but it's kinda buggy):
http://www.hasbro.com/nerf/en_US/shop/d ... 39BC:en_US

[THE JEW (RaVeN)]

Sidenote:

I believe Tippmann's claim to the Squadbuster / "Bouncy Betty" grenade has expired.

http://patft.uspto.gov/netacgi/nph-Pars ... %2F4932672

It was filed in 1989.

I believe it's a 20 year patent as per this:

http://en.wikipedia.org/wiki/Term_of_pa ... ted_States

[THE JEW (RaVeN)]

Compact tennis ball launcher:
http://www.antennalaunchers.com/csv19/index.html

Instructions:
http://www.antennalaunchers.com/csv19/csv19asm.html

Reviews:
http://www.eham.net/reviews/detail/5199
http://www.eham.net/reviews/detail/4852

[THE JEW (RaVeN)]

Nerf "torpedoes" with an approximate 2.75" to 3" diameter are available at the Dollarama in Woodstock for $2. They have a rubbery
"football" front and 3 fins mount off a styrofoam tube back.

[[PX] Nebuchadnezzar]

are they Nerf brand?

[THE JEW (RaVeN)]

No, they're knock-offs.

[[PX] Nebuchadnezzar]

Latest, Greatest DIY:
http://planbpaintball.com/?p=2563