16 replies to this topic

[echo104b]

I've been considering this for some time. What would happen if you put a rapid fire 20 on a tripod and made it chain fed? Put a large Air tank under it for constant pressure, pull the trigger, and everything in front of you dies... at least thats what i hope would happen.

First off, the main part of the modification. How would i make a Rapid Fire 20 Chain Fed. I've been tossing around ideas, and none of them are practical. Much less doable. the most popular among my brainmeats is a "Zipper" type twin rotating barrel idea. One barrel on the actuall gun's rotating drum. the other on top of it, feeding the chain into the the lower one. than seperating as it rotates further, allowing the chain to fall off on the other side. But what would keep the chain from sliding off the front?

If anybody has any ideas, i'd be more than happy to hear them. The president of my nerf club is really enthusiastic about this, and i hope that i can find some way to make it work. But if it just isnt possible, than i'd prefer to stop work before i start it and get halfway through tearing apart a perfectly good Rapid Fire 20.

Thanks!

[blinkycc13]

Why a rapid fire 20? The point of a rf20 is the multiple barrels. If it was chain-fed, you would probably be using just one barrel anyway.

[RaZeR ShArP]

Well, look at your RF20's turret. See the teeth on the back? You need to replicate that with small peices of plastic or wood, and put them on every barrel of the chain. I tried this once but it jammed and almost took a chunk out of the casing. I don't reccomend this, but do what you want.

-Sharpie

[CaMbLaM]

As I recall Starbuck built one of these awhile back, you might want to try searching for that.

One thing I would like to point out about the rf20, it has limited range. If you build this stationary unless you play with stock guns your going to be a sitting duck. The rf20 was made for rushing in and spraying, not to be mounted as a stationary gun. Anyone with a crossbow or bbb or max-shot even could take you out before they enter your range.

Now limited range doesn’t make it useless stationary, you will have to deploy it right. Example, if your nerfing indoors range isn't as big a deal and it would be a pretty good gun.

[echo104b]

Why a rapid fire 20? The point of a rf20 is the multiple barrels. If it was chain-fed, you would probably be using just one barrel anyway.

I am using a rapid fire 20 because the club has 5 of them, and it's the only full auto gun we have.

And CaMbLaM, That was considdered by me for some time, but i shot it down because like you said, it would be too easy to jam. What i'm talking about is something like this:

http://img.photobuck...b/ChainFeed.jpg

Thats what i mean by a "Zipper" feed.

Edited by echo104b, 23 May 2006 - 10:50 AM.

[Pineapple]

How would i make a Rapid Fire 20 Chain Fed. I've been tossing around ideas, and none of them are practical. Much less doable.

You just quoted my answer to you.

It's up to you, but if it's going to take a whole bunch of work to yield a product that MIGHT work, you'd be pressed to probably try something different.

You're going to have to worry about;
-Air supply
-Chain jamming
-Misfeeding
And then you have to aim and fire, too.

How about swapping one of your 5 RF20s for a Razorbeast and a whole bunch of chains...like Starbuck's mod.


And...the purpose of a turret is...

For most Nerf games that I'm familiar with, a "turret" would probably be good to guard a flag in CTF games, but not much else. If you're into all that Milsim stuff, I guess a turret or gun emplacement would be a reasonable addition to the soldier play. But all it would take is a coordinated flanking maneuver and the turret would be taken out. Now if everyone on your team is guarding the turret, then the whole purpose of the turret is negated, since the rest of the team has to stick around to guard it.

But hey, it's your game. I like RapidFire 20s. I'd hate to see another one bite the dust in an attempt to increase it's firepower by a negligible amount.

Good luck if you pursue this.


-Piney-

[lilsniper]

Echo, just to help you out and tell you what we mean by "Starbuck's mod", here is a link to his Razorbeast mod:

http://www.tinhnerf....de=article&k=39

-He mounted a Razorbeast to a tripod, and didn't need to do any modifications to the casing since it is already chain fed. He has 200 rounds of ammo (chains), so this could be a very useful weapon to put at a base, etc. A RF20 on a tripod (chain fed) is unneccassary since there are already guns out there meant for chains. Hope this helps!!

[Forsaken angel24]

Echo, just to help you out and tell you what we mean by "Starbuck's mod", here is a link to his Razorbeast mod:

http://www.tinhnerf....de=article&k=39

-He mounted a Razorbeast to a tripod, and didn't need to do any modifications to the casing since it is already chain fed. He has 200 rounds of ammo (chains), so this could be a very useful weapon to put at a base, etc. A RF20 on a tripod (chain fed) is unneccassary since there are already guns out there meant for chains. Hope this helps!!

I would take a stationary RF20 over a stationary razorbeast anyday The RZB is a manual gun where then RF20 is full auto. Besides if you are going to have a stationary gun I would prefer it to spit20 darts in 3 seconds as opposed to 5 with the RZB. The only problem I have is with the poor range of both guns. I have tried a few different mods and cant get any of my RF20's to pass the 35 mark before dart skip.

A few ideas on how to make a full auto RF20. First find a way to extend the air tank. There was a guy who did it with a huge peice of pvc, a few gauges, an adaptor for an air compressor and lots of creativity. You can also do it by finding a way to increase the amount of bladders on the RF20.

Now that you have air supply for firing off over 160+ rounds you can go one of a few ways. You can go the easy way: Thirsts clip mod.

The not so hard way: branch on my idea:

Idea 1. Look at the the teeth on the outer ring of the turret. There will be a white peice pushed forward by the gun that goes into these teeth andmake the turret turn. Find a way to mimic those but make it in a belt form. The teeth you mimic will have to be light so metal and such is not advised. You will need to take the front part of the turret off to make room for the barrels that are going to be under the light weight homemade belt teeth. The barrels will have to be staggerred like the RF20's barrels but in a straight fashion.
You will need to cut at the shell. To make room for your home made belt to slide into place. So if all has gone right you will now have A RF20 thats belt fed that has barrels. If you accomplish this then you are left with one problem. Barrel seal? I havent been able to figure this out yet. This is a conceptual mod. If you or anyone can get this to work then I applaud you and good luck.

The hard way: Create your own idea from scratch and pray you dont fail.

Edit: Carbon put it best. Learn from your mistakes and then branch on from them. I have avoided making many mistakes in guns because I made a similar mistake in the past. Well put carbon.

Edited by Forsaken_angel24, 23 May 2006 - 03:35 PM.

[Carbon]

The hard way: Create your own idea from scratch and pray you dont fail.

Or, even more important, when you fail, learn from it and try again.

[nerfer34]

My RF20 gets around 58' on average. So I think the RF20 is awesome for indoors but not quite as effective as outdoors.

[Nero121]

Dream more than others think is practical...Expect more than others think is possible
-Cadet Maxium

[sam]

I just got rushed with one of theses things in the assassins game I’m in right now, and let me tell you the range is poor at best, and the accuracy it very lacking. I wasn’t hit once in two spurts of ten darts, and this was from say 30', maybe. I wasn’t even prepared, and I’m also big and slow. You would have to mod it a lot for it to get good distance and accuracy. Also chain-feeding it would be too difficult for it to be worth while.

If you really wanted a tripod mounted RF20, you should do something like Forsake angel said.

[echo104b]

Woah! Loads of replies! I'll try to address them all...

Pineapple: The reason i'm using a RF20 is because one of them is Busted, and we're doing just fine without it. SO if i can fix it, and make this turret, than that's awesome. However, if i cant make this, than there's no big loss.

Lilsniper: I really like that look, however, the Razorbeast's ROF Sucks compared to the RF20. I definately prefer the 20.

Fordaken Angel: I'll take a look at all the internals in more detail. I've seen pics before, and i've dabbled around in it's guts a little, but i'm gonna have to really tear it apart to see if i can realistically do what you described. i cant imagine i wouldnt be able to, but i'd like to know a little more about how this gun works before i start on something that complicated. Not that it's a bad idea, i just dont like the complexity. I'm a fan of Occam's Razor. The simplest idea always works best.

Carbon: I agree entirely. if i do fail, I've had experience in Repair jobs. if the damage isnt too massive, i can put it all back together again and start over from scratch.

Nero121: That is an excelent Quote. I'll have to remember that one.

Sam: At 30' almost any nerf gun would be inefective, unless it's modded. there are no modded guns at my club. you're encouraged to bring your own modded guns from home, but i'm the only one that does that. Simply by making it a CPVC or brass barrel, i could extend the distance to about the 35' mark or more. And an important thing to remember about a rapid fire weapon, Accuracy isnt as important as ROF and Range. If you're spraying 120 Rounds per minuite at a guy 25' away with a gun that shoots farther than 30', you're going to hit him. Gauranteed. However, if you focus on accuracy, you loose range and rate of fire. thereby rendering the weapon useless for practical use. Low ROF = High Accuracy. High ROF = Low accuracy. It's that simple.

[davidbowie]

You guys are forgetting that, while the feed might be a bit tricky, the seals are going to be a real bitch to get right.

I'd say your best bet is to try motorizing a RZB, perhaps with a cordless drill. Integrating a RZB and an RF20 would also be pretty cool, but there's a bazillion different ways that could fail.

[nerfer34]

Automatic > Chain fed.

[echo104b]

You guys are forgetting that, while the feed might be a bit tricky, the seals are going to be a real bitch to get right.

I'd say your best bet is to try motorizing a RZB, perhaps with a cordless drill. Integrating a RZB and an RF20 would also be pretty cool, but there's a bazillion different ways that could fail.

The seals wont be that difficult. Just increase the tension on the depresurize spring, and it should work fine. Look at the Maverick. it has the worst seals i've ever seen... and it performs just Peachy!

Automatic > Chain fed.

Automatic = Chainfed if you want more than 20 shots

[rotoryfan]

if anyone actually read starbuck's mod, you'd know that his rzb got ranges of 60 feet. it has a pretty quick rate of fire, and is probably very accurate, because it is on a tripod.

if you insist on using the RF20 internals, grab a bunch of bladders, hook 'em together, and make some kind of motorized rotating assembly for chains.

the only way I can think of to make the chains line up with the release of air is to do some major precision hacking of the case and turret. and timing would be a bitch too...