26 replies to this topic

[imaseoulman]

So, this last summer, I was messing around with a few of my SuperMaxx 3000's when I remembered that not all rotation mechs are created equally. Not even all SM3K rotation mechs are identical. This may surprise some of you, but some SM3K's have a piston the protrudes from the air tank and when pressurized, it turns an arm that rotates the turret.

Why is that such a big deal? It means the rotation is driven by air pressure and NOT the pump stroke! So, how can we use that to our advantage? Well, all you have to do is connect it to an external air source (MagStrike bladder, PVC tank, HPA tank, whatever, though I use the first two) and then it is suddenly transformed into a semi-automatic.

How do we then improve upon that? Well, we pull a ForsakenAngel_24 and slap two of them together!



I'm not going to post a write-up at this time for this mod, but I will tell you that I can easily fire three rounds per second at 90' flat.

I normally don't post unfinished projects, but this coming Spring I'll begin some intense government training and I don't know how much time I'll have for NERF over the next couple years, so I'm trying to get a lot of my ideas posted on here.

This was conceived as part of a base-turret-defense system as these are quite large and when dual wielded, quite unwieldy (though it wouldn't be too difficult to shorten them to pistol size). The turret functions simply by placing the SM3K's on them via a loose fitting coupler (sanded out slightly) that allow for rotation left to right. They are mounted onto a length of pipe that is connected to other loose fitting PVC that allows rotation up and down to enable full range of motion. The pipe is supported by a PVC stand. There are other blasters that attach to this stand for an interesting suppression system I initially conceived a little over a year ago.

Here are some videos of my "proof of concept." Basically I just inserted a barbed tee into the line running from the pump to the tank and connected the odd end to an electric inflator.

Enjoy!

Nothing Too Exciting.
Letting the pressure build up to 40psi on my inflator.

[TantumBull]

Oh. My. God. Post...more...pics.

[ejrasmussen]

When I saw that pic I jizzed in my pants
Anyways I would never had thought that the rotation mech was like that. Also for now is it just hooked up to a compressor, or do you have a tank and if so how many shots can you get with it.

Edited by ejrasmussen, 14 December 2008 - 11:10 PM.

[Soothsayer]

In tragic need of more pictures of this monster.

[imaseoulman]

ejrasmussen, on Dec 14 2008, 09:10 PM, said:

When I saw that pic I jizzed in my pants
Anyways I would never had thought that the rotation mech was like that. Also for now is it just hooked up to a compressor, or do you have a tank and if so how many shots can you get with it.

I didn't click that link. I can only hope that it is a Rick Roll and not something far, far worse.
It is not hooked up to a compressor (or an inflator). I only connected it to that to test it and record the video. As I stated in the second paragraph (it's kinda hidden) I use it with either a large (600+ cubic inch) PVC tank or CPS system which consists of multiple linked MagStrike bladders.

TantumBull, on Dec 14 2008, 08:55 PM, said:

Oh. My. God. Post...more...pics.

Soothsayer, on Dec 14 2008, 09:16 PM, said:

In tragic need of more pictures of this monster.

All in due time. All in due time.

There are other related projects I need to get posted on here first.

But yes, I think 'monster' is an apt description for three rounds per second at 90'.

Edited by imaseoulman, 14 December 2008 - 11:21 PM.

[L0pper]

Jizzed in my pants was a recent SNL skit. It was a music video for some fake boyband.

[BustaNinja]

imaseoulman, on Dec 14 2008, 08:21 PM, said:

ejrasmussen, on Dec 14 2008, 09:10 PM, said:

When I saw that pic I jizzed in my pants
Anyways I would never had thought that the rotation mech was like that. Also for now is it just hooked up to a compressor, or do you have a tank and if so how many shots can you get with it.

I didn't click that link. I can only hope that it is a Rick Roll and not something far, far worse.
It is not hooked up to a compressor (or an inflator). I only connected it to that to test it and record the video. As I stated in the second paragraph (it's kinda hidden) I use it with either a large (600+ cubic inch) PVC tank or CPS system which consists of multiple linked MagStrike bladders.

TantumBull, on Dec 14 2008, 08:55 PM, said:

Oh. My. God. Post...more...pics.

Soothsayer, on Dec 14 2008, 09:16 PM, said:

In tragic need of more pictures of this monster.

All in due time. All in due time.

There are other related projects I need to get posted on here first.

But yes, I think 'monster' is an apt description for three rounds per second at 90'.

Oh its far worse then any rick roll.

Anyway, nice. One of Flaming Hilt's krazy krew came to SPANO with a Samus style arm cannon that he used like a semi auto. It failed darts about 20 feet.

[Forsaken angel24]

Magnificent thinking.
And here I gave all my SM3K's to Dumpster because I thought they were absolutely useless.
It is very rare when someone changes my opinion on a gun and you sir have done it.

[imaseoulman]

Thanks, Angel (does anybody else feel a little strange calling a body builder in a creepy mask, "Angel?").
I know what you mean, I was about to abandon hope for these when it dawned on me how I could make use of the rotation mech. Unfortunately, not all SM3K's use this method of rotation and I've not yet found a way to determine the difference by sight.

Actually, a blaster write-up that I plan on posting some time soon was inspired by your assassin videos. I've not yet played assassins, but thinking about the game got me to thinking about different designs.

Edited by imaseoulman, 15 December 2008 - 01:40 AM.

[SirTofu]

I'm going to be interested in seeing as much info on this project as possible. I broke the pump handle of SM3k, was lost by a friend, and have had it sitting around collecting dust.

[Daniel Beaver]

From the video, it looks like you are using the yellow SM3k - I wonder if other editions of the SM3k have the semi-auto mechanism. I look forward to some internal pictures of this mechanism. Do the blasters with the semi-auto mechanism "feel" different when you pump them? That may be a way to identify which of these blasters have this mechanism without having to open them.

I wonder if the big yellow "tank" on the body of the SM3k is big enough the house a magstrike or RF20 bladder. I'm thinking along the lines of Captain Slug's comment in reference to the phoenix:

Quote

...that modification is basically just an at2k in a magstrike shell using the bladder as a tank extension.
That project might have been even more interesting if the magstrike trigger valve were left inbetween the bladder and the 2k tank, because then the bladder could be used to "refill" the at2k tank a few times.

Apply this idea to the SM3k, and you would negate the need for some sort of external tank, while preserving the blaster's semi-auto capabilities. Naturally, this is all wild speculation on my part.

Quote

Thanks, Angel (does anybody else feel a little strange calling a body builder in a creepy mask, "Angel?").

All in its proper context. This is, after all, one of those hobbies that brings men and post-pubescent boys together to play with toys

[Draconis]

imaseoulman, on Dec 14 2008, 10:39 PM, said:

Thanks, Angel (does anybody else feel a little strange calling a body builder in a creepy mask, "Angel?").

Yes. Definitely.

Quote

I know what you mean, I was about to abandon hope for these when it dawned on me how I could make use of the rotation mech. Unfortunately, not all SM3K's use this method of rotation and I've not yet found a way to determine the difference by sight.

I can't really tell... Are those the newer (blue) style? Or the older yellow and green?

[Radio]

bahaha bob I hate to say it but I'm REALLY glad I didn't trade you my SM2500 a day before this piece of art came out. I WISH I had 2!!! i think I'm just going to make one wit a single turret with my monstrosity of a CO2 tank.



Air gun aficionados; I'm trying to figure what connections and hoses I should use for a EDIT: HPA tank to fit it.

http://newagepaintba...es/GUERILLA.gif

High pressure in general is a dangerous business and i don't want to majorly fuck myself by blowing some crucial part.


lol edited. I cant believe i forgot about the freezing temperature of co2.

Edited by Radio, 15 December 2008 - 06:30 PM.

[banana432]

I just tried bob's test and am sad to say the blue ones will not work for this but if anyone wants to buy it it's in my sales thread. And also would'nt this be fully auto?

[Radio]

banana432, on Dec 15 2008, 02:52 PM, said:

I just tried bob's test and am sad to say the blue ones will not work for this but if anyone wants to buy it it's in my sales thread. And also would'nt this be fully auto?

Naw, fully auto would be, hold down the trigger and all 8 barrels shoot, one at a time. Fully auto would be Magstrike wildfire RF20 Powerclip status. That confused me for a while too, but i would take semi over full auto any day of the week.

[rork]

Radio: to the best of my knowledge, pressurized CO2 will fuck up your gun, period, as the gas issued is very cold; paintball guns can take it, but nerf guns can't. HPA tanks are a whole different thing.

EDIT: Yes, semi-auto (or slow, controlled, 1-2 rps full-auto) is far preferable to the extended shotgun blast that is, say, a PC/MS/RF20.

Edited by rork, 15 December 2008 - 06:15 PM.

[imaseoulman]

Yeah, often after I make a new discovery about a certain blaster, I'm tempted to hoard them all before I release the write-up, in case they become a hot item. Before I posted about the Marvelous Salvo, I tried to buy all the SMDTG's I could find (I've amassed quite a collection, well over a dozen, and I will never sell them, too valuable).

I tried getting a few other air driven turret SM3K's after I discovered this and only succeeded in finding two.

And just so everybody knows, do not the tank over 35 psi. It doesn't handle it well.

As for putting a tank inside the SM3K's shell, it wouldn't be easy, and perhaps not realistic. This thought occurred to me when I was first building these, and there just isn't as much room in there as you would expect. I may, however, do an "Unfair Air Stock" mod to these.

I do use MagStrike bladders to power these and it works quite well. I'm not sure how many shots I can get off with before having to repump, but it's several turrets full. I would never use C02 on this. The SM3K tanks aren't especially robust, and that's just asking for trouble.

This is definitely not automatic. Automatic means you don't have to do anything but hold down the trigger and the gun/blaster does the rest until the magazine/turret is empty. Semi-automatic means all you have to do is pull the trigger once for each shot. After that you have pump-action, bolt action, breech loading, etc. It may be possible to convert this into an automatic with some clever valve work, but there's no real need for it.

[VACC]

The air pressure rotation mech is simply indicitive of an older run of the blasters. I have some in my basement somewhere of both types (I think). If I have time this weekend I'll take a look and see if they have dates imprinted on the yellow plastic anywhere that might be indicitive of their production run. They began using the mechanicaly advancing rotation mechanism right before Hasbro merged it's Nerf and Larami lines for the Nerf LArami Supermaxx run. Gay.

VACC

[imaseoulman]

I hadn't thought about dates...

...just checked, all mine say 1996.

But, I did just find an easily recogniable visual difference (if the stickers are still on it). I didn't realize this sooner because many of mine are missing the stickers. Unfortunately, sellers could easily altar stickers to claim that it is a certain SM3000.

If the blaster uses this NERF logo, then it is the air-driven blaster I used for this mod write-up.

If the blaster uses this NERF logo, then the turret is rotated via a mechanical arm on the pump stroke.


I'll post actual pictures of the stickers on the blasters later after I dig out my camera.

[Talio]

This is exactly the kind of thing I want to see from the rest of you. Here's a guy with a crazy shit idea that he actually tried and it worked. Bravo sir.

Talio.

[VACC]

imaseoulman, on Dec 16 2008, 02:40 PM, said:

I hadn't thought about dates...

...just checked, all mine say 1996.

But, I did just find an easily recogniable visual difference (if the stickers are still on it). I didn't realize this sooner because many of mine are missing the stickers. Unfortunately, sellers could easily altar stickers to claim that it is a certain SM3000.

If the blaster uses this NERF logo, then it is the air-driven blaster I used for this mod write-up.

If the blaster uses this NERF logo, then the turret is rotated via a mechanical arm on the pump stroke.


I'll post actual pictures of the stickers on the blasters later after I dig out my camera.

Or you could just look for the straight up Larami models, labeled the Supermaxx 2500. They should all be air driven. Nerf only got their name slapped on the guns, and the number changed, after Hasbro merged their two divisions. Unfortunately they gotta be pretty fucking rare by now. As an aside, the original mechanism was always much more reliable.

[imaseoulman]

Talio, on Dec 16 2008, 12:55 PM, said:

This is exactly the kind of thing I want to see from the rest of you. Here's a guy with a crazy shit idea that he actually tried and it worked. Bravo sir.

Talio.

Thank you, Talio. I greatly appreciate it.

VACC, on Dec 16 2008, 01:23 PM, said:

Or you could just look for the straight up Larami models, labeled the Supermaxx 2500. They should all be air driven. Nerf only got their name slapped on the guns, and the number changed, after Hasbro merged their two divisions. Unfortunately they gotta be pretty fucking rare by now. As an aside, the original mechanism was always much more reliable.

They are pretty rare, I've only seen three in the last three years. There is another, model, though. I can't remember what it's called, but it was marketed under a different brand but it had the same external appearance of the Larami 2500. Some guy sold of few of those on ebay about a year and a half ago...wish I could remember what they were called.

And yes, the original mechanism is much more reliable.