92 replies to this topic

[nerfer34]

i REALLY REALLY want a nerf greneade. Ever been in a scituation when your oppent is ducking under a bed and you just can't hit him? Well I have SOOO many times and I want something to stop him. I was thinking of a making a "Nerf grande pump" (like a ball pump or a bike pump or an at2k pump) and having tubing go into the grenade's air tank. So then I just detach the grenade from the tube and it is ready to go. But I need some more ideas.......
Also I don't want to use Co2.

[The Large Moose]

Heres the simple alternative to a grenade:

Step 1: Rush your friend and shoot him in the face. Don't be a pansy about it.

There you go!

EDIT: To make my post semi-important; search. There are plenty of Nerf Grenades/Failed Idea posts around here thats bound to give you ideas. Don't always come to the forum asking for others to do it for you. Make sure all your options of doing it yourself are depleted.

Edited by The Large Moose, 08 April 2006 - 10:22 PM.

[nerfer34]

I've already done that a million times but I want something foolproof.

[Renegade]

*sigh* I've been in that exact situation, and used one of my nerf grenades, shooting foam darts down onto them, and winning the war. Used them for rushing into bases kamikaze style, and to stop rushers. These grenades are foolproof for me, and easily made with ony one part besides stefans.

Barricade Busters

Davidbowie: Great minds think alike, eh?

Edited by Renegade, 08 April 2006 - 10:28 PM.

[davidbowie]

the Barricade Buster is, in my opinion, the best nerf grenade out there.

http://nerfhaven.com...arricade buster

Edit: yup, you beat me to it!

Edited by davidbowie, 08 April 2006 - 10:37 PM.

[The Large Moose]

The reason there is no true fool-proof Nerf grenade is because its incredibly hard, if not impossible.

Nerf utilizes air technology to fire it's projectiles, while real weapons use combustion/explosive means to propel its projectiles.

Real hand grenades use this same process to expel shrapnel everywhere. It would be difficult to do with air as you need a time release function, and other measures that would be difficult to put into a small enough container and still prove effective.

Plus the fact to make it fool proof makes it seem more difficult. Hell, real grenades (not as much now-a-days), aren't fool proof, and may explode prematurely, or not at all.

[GeneralPrimevil]

So umm...what about something that would fit into a 1.5" cylinder and explode at a determinable (through testing) time/distance? I do not believe someone has needed that before (*AHERM*)...

Yeah, the Barricade Buster is awesome for a hand grenade. Still need something for launchers, however. Well, time for me to do something 'bout that then...'ll get back to everyone in a year or so...

[Renegade]

Well, one idea would be having someting like a toilet paper roll permanantly fixed insde of a Titan missle. Not interfereing with it being placed over the stock barrel. This inner tube would be filled with small stefans, and a removeable cap placed on the end. This end cap would be connected with fishing line, which is then attatched to the titan. After the missle travels a distance, it would pull off the cap releasing the stefans down on the enemy.

Just a quick idea, which may or may not work. I personally would never use it, since my barricade buster's can reach ranges of up to 50 feet with a nice killzone.

Another idea for indoors is to use Frost Vectrons nerf RPG idea. Which was fired out of the ball part of a sm5000. It had a plunger of sort which would push darts out after it hit a wall or other hard object.

Another idea, is my RPG that launches a barricade buster using a rubber band .

[GeneralPrimevil]

That gave me an idea. I'm gonna go have to see what fits inside of that barrel now. Luckily I have a good two months to figure it out and get it nearly perfected...

Cardboard tube full of Stefans, or 3/8" FBR really, which has slight spring pressure on it so as to cause a jetison of the payload when a bit more pressure is applied to the rear cap, liek a burst disk in a hybrid spudgun, only not quite like that...I'll just make a few rounds, test 'em, if they work, you'll be watching a video. If they don't, well, yeah.

[taita cakes]

Shameless Self Promotion

Explodes on impact.
Great directional spray.
Great range/velocity.

Need I say more?

[CaptainSlug]

Barricade Busters

I'm e-mailing a few promotional companies to see if they have any reject/undelivered foldable frisbees that they would be willing to sell to me cheaply so I can offer them for sale here. I can't find anywhere to buy them at reasonable prices.

Edited by CaptainSlug, 09 April 2006 - 10:45 AM.

[GeneralPrimevil]

Okay, I'm making a task force for this now. Taita, Renegade, CS (if you want), DB, I all have to start brainstorming for something more..."shootable" than what has been brought to the table already. Here's why:
- Bunker Busters: Great for handgrenades, too large for a practical launcher. They also do not appear to be spheres.
- Film Canisters: If something goes wrong, I've shot these through plywood before. That is bad. Plywood > human flesh. See, let's say that it, for some reason, does not explode when it is travelling at it's 130 or so ft/sec and hits someone. Well, umm, self-explanatory...

So, what is needed is:
- something which can hold FBR
- shoot out of 1-2" PVC (preferably 1.5" or 2" so I don't have to rebarrel anything)
- be easy/quick to make
- field-reloadable (so reusable)
- preferably not attached to the gun, since 25lb fishing line is expensive. Yes, there is that much power. Something else might work...
- no pyrotechnic devices

1.5" PVC has an I.D. of about 1.59, so 1.5" projectiles should be fine as long as they weigh less than 400g. 400g is more than one hundred feet of .5" FBR, just so you know. Chances are, the FBR used inside these 'shells' will be 3/8" FBR with size BB fishing weights glued into them. Length will vary, but will probably hover around an inch.

So far, my thoughts for the case of the shell are to use cardboard tubes. They can fit inside of 2" PVC loosely and can hold a good amount of FBR. Now, an easy release system: this is where I need you guys. I've already posted what is desired. As for the load, I'm looking into 100 grams total, which, since BB sinkers weigh about .4g and 1" of 3/8" FBR weighs .2g, means that there can be 100 Stefans inside of one 'shell' with the case weighing around 40g. That is about 1.411oz. Why 100g? Well, it only shoots with about 41 ft-lbs of energy at the muzzle with a speed of 109 ft/sec. Or so it is predicted. Actuals will be less than that by a bit, since the cartboard tube fits very loosely inside 2" pipe. So loose, in fact, that a cubber fender washer may be required to make it seal better.

I didn't start a new thread because I like to hijack pointless threads, such as this one.

Oh yeah, in case no one noticed yet, these 'air-bursts' would be for my Bloody Massive Cannon.

[Flaming Hilt]

field-reloadable (so reusable)

Hate to ruin your fun here, but I'm not so sure you should worry so much about this. Obviously -- unless it explodes -- almost everything is reusable, but you never see soldiers picking up pieces of shrapnel and putting them back together into a grenade: why should we worry about doing the same?

I think that perhaps if you cut down the sides of cardboard tubing (tubing.. fancy word for toilet paper roll, or something) so to make it like flaps but still attached at the bottom, that may work. The carboard could slide easily out of the shell of PVC, and the stefans could easily slide out of the flapped cardboard.

There's my faily contribution. Back to fixing this flippin' LBB...

[CaptainSlug]

Okay, I'm making a task force for this now. Taita, Renegade, CS (if you want), DB, I all have to start brainstorming for something more..."shootable" than what has been brought to the table already.

I'll start thinking. The biggest problem is thinking up something that is also a safe projectile itself.
Also, do you want it to be set off when it runs into an obstacle or do you want it to automatically go off mid-air?
Also to keep the weigh down metallic springs may not even be an option.

Off to the CAD with me...

Edited by CaptainSlug, 09 April 2006 - 01:43 PM.

[Megothitinheadbydart]

Ok, you didn't say my name, but I'm annoying, so here it goes. Use a cardboard tube and glue/tape a cardboard disk to seal off one end of the tube. Next take a cardboard circle that fits inside the tube and attach a string to the center of it. put another disk on the string, but loose so it can slide up and down. Attach a toy parachute to the end of the string, or a streamer it you want a less sudden release. Get an old digital watch with a timer and hack it so instead of the alarm you get a weak elecrical siganl when it goes off. Get the proper relay and a small battery plus a small hacked servo/gearmotor and glue it all to the sliding disk with a spring and a catch activated by the gearmotor/servo.(the disk is sliding on the string to make it easier to load darts it.
To use it just put the first disk it to the bottom of the sealed off tube, pour stephans in, put the disk with the timer, spring, catch and streamer/parachute in and tuck the parachute on the spring. Set the timer and launch it.

[GeneralPrimevil]

Well, so far I have this:

It only holds 6 micros and I made it out of old 1" thinwall I had lying around.

Testing: I've only fired it once, and I don't have a video yet. I used a plastic bag for the parachute, duct taping it on .

Well, without the endcap and at 81psi, the six 3/0 micros Stefans had a spread of about ten feet across at a hundre forty feet. They still were not even close to dropping in trajectory. I was unable to recover all six of the darts in my five minute search. I nearly shit myself, however, when I saw that they were moving faster (velocity) than anything I've seen before, including modded Super Soakers. I could not believe it. Come tomorrow, I'll video tape the test. Oh yeah, the parachute deployed 40ft out. It slowed down VERY quickly. So, as long as this thing is fired more verticle than my horizontal test, it should do fine. Now, any ideas for a forward cap?

Edit: I missed Megot's post...

It doesn't matter who helps. I just put them since they had already posted stuff, that and CS is really good with designing things...DB has cannon experience as well.

Anyway, so, that system might get on the heavy side; however, by upping the pressure to 120, that thing would fly high. I will see what I can do about it after I make a 2" barrel come Wednesday. Then, I'll mess with electrical shtuffs...

Edited by GeneralPrimevil, 09 April 2006 - 02:04 PM.

[Lutinent Cole]

Kay, here is what I have for a nerf grenade, I use a pingpong ball filled with pieces of cut of FBR, really tiny, and a firecracker in the pingpong ball. Nice explosion, you can also use it as a smokescreen, and I also tried it using styrafoam beads

[GeneralPrimevil]

Okay, I took a few more shots. Two of them were with 40psi, one with 20. I got a (really shitty, my digi cam took it. Wait for tomorrow for a better, hi-def version from my MiniDV) vid of the 20psi. The darts barely flew past the casing.

More pics:

The thing landed where that white spot is. All six darts nailed that shed with considerable force; much much harder than to be safe. That was at 40 psi.


Breach loading is nice. I will be added a folding handle to this barrel and the 2" barrel.

Video:
CLICK HERE!
It is hosted by PutFile.

Edit: that vid is 'teh shits', is it not? Anyway, I made this real quick: LINKY LINK!
I wasn't aiming for the shed when I used 80 psi. I just shot it straight out off that table. Some notes:
- there is an eleven foot drop from the barrel to the center of the 40psi group. That was over a distance of about 65ft. The casing has now consistantly landed within ten feet of the muzzle after a ten-foot drop.

This thing is a lot like Taita's design. We need to make it safer...

Edited by GeneralPrimevil, 09 April 2006 - 02:52 PM.

[nerfer34]

I like Renegades grenade But I don't have any of those frisbies. Again no explosives used!(lets be realistic) I was thinking like a titan missle and you pump air into its orange"nose and you have stefans in the missle and and a cap on the back. When you throw it, it must land on the nose and then the stefans go flyin into the air. Does this sound reasonable?

[Renegade]

Barricade Busters

I'm e-mailing a few promotional companies to see if they have any reject/undelivered foldable frisbees that they would be willing to sell to me cheaply so I can offer them for sale here. I can't find anywhere to buy them at reasonable prices.

Yeah, I found a company which would allow me to print my own design on them and choose color, but minimum order was around $200-$300. Since then I haven't really searched for them.

Primevil, will do. I've got a few ideas in mind. I'd like to have them fire out of 1'' barrels, for use in my HCML breech, which works and looks pretty much like a M203 grenade launcher.

[nerfer34]

I was also thinking of a grenade launcher to just clear out the whole area. My idea is to grab a titan and make a wide barrel where I could just dump in about 50 stefans or so and just prime it up and shoot.

[Flaming Hilt]

I'd like to have them fire out of 1'' barrels, for use in my HCML breech, which works and looks pretty much like a M203 grenade launcher.

Pics?

I'm of course going to have to figure out a design for the grenade... and put it on paper... and plan the gun... and... three weeks later, you'll hear from me...

But until then there's no harm in refining our ideas!

GPevil... use a bigger parachute, and pack more stefans in deeper so there's more resistance when they come out. Then maybe it won't hurt as much.

[Megothitinheadbydart]

GeneralPrimevil, is your grenade just 1" 200psi tube with a bag as a parachute? if so, use a cardboard tube, that alone will make it much safer. Also, if the momentum of the darts is just flinging them out the front of the tube when the "parachute slows it down, isn't it more like discarding sbot shotgun round than a grenade? Oh well, I thought you wanted an airburst type thing but anyways, the way you are doing this the safety and range are interconnected, so it is probably not the best design. If it was an airburst grenade where you shoot it over the heads of a cluster of opponents, then it would inherently be much safer since the darts would be taking a much different path than the casing, unless you use my design, in which case the casing will only be falling from the sky, not shooting at people. This means that you only have to protect people from accidental hits with the casing, still a problem, but as long as you make sure it can't seriously hurt anyone a few painful hits once in a while by accident shouldn't be a huge problem.

Anyways, I just tested my idea, but without a timer and thrown by hand. It worked wonderfully, bt without a timer the darts came out as soon as the parachute caught the air and opened, which was quite soon, about 15-20ft up from my best guess when I threw it straight up.

[CaptainSlug]

Here's what I came up with. Springs would weight too much so I fiddled around with rubber bands and really springy ones can fling stefans atleast 20 feet. so...


The nose cone and body sections are made out of foam. The orange parts are rubber bands. The green is trimmed sections of cardboard tube. The yellow parts (foam nose cone with hollow section plus polyester guiding rods) slide back with the green parts on impact uncovering the stefans pressed into a firing position against the rubber bands causing them to fire.

The model isn't perfect yet but this is the functional concept I'm trying to get right. I forgot to factor in barrel friction potentially activating the mechanism. I need to do more thinking about how best to use rubber bands to fling darts from a grenade...

Edited by CaptainSlug, 09 April 2006 - 03:59 PM.

[GeneralPrimevil]

I'm currently using the micros. For actual use, nanos I plan to use. I can fit twice as many nanos inside that tube than micros. Also, I'm gonna buy another 10' segment of 1" thinwall. Then I can use 12, ten inch segments to house 40 nanos. Yeah...

FH, I'll try a larger parachute and 8 micros instead of that mini-bag and 6 micros. I also have some nylon I could cut into some cone nets (the geometrical figure, not the thing full of holes), stitch 'em up, secure 'em with some sort of clip. That should be more durable than the plastic grocery bags, especially since after four shots, I already should replace the one on that prototype casing I made...

So would this be a variation of Taita's or is it new? Oh well, gotta go make a barrel and use cardboard...

Megot, I did want an airburst. In order to do that, a parachute-release would be needed. I was only testing my cannon's capabilities and the concept of a parachute. Now that I have figured both out, I have to start over with cardboard tubing for a 2" barrel. That is when I will be fully serious into this. I will also try angled shots later today, but I don't like losing six non-combatant micros.

I'll tell everyone the results of a near-vertical shot. That will determine if the parachute will suspend the casing. If it suspends the PVC, it should suspend the carboard, theoretically...

Also, this is better than my shotgun loads, as in, waaay better. The darts go farther.

Anyway, this is not designed to be fired into an oncoming cloud of people, unless it really had to be . Way to hazardous.