7 replies to this topic

[Yazzeh]

Alright, well I've been looking at some gatling guns and staring at my Mavericks and pondering the maximum torque you could squeeze out of a moderately small motor. Then I decided to draw up some schematics...



To explain... The motor spins the plunger tubes around the edge of the gun casing. As the plunger tubes spin, the plunger itself is guided into a position using the torque of the motor. The reason the guides (red) are kind of stuttered is so the pin of the plunger has somewhere to rest when you stop firing. The plunger will have to be pressed quite firmly against the exterior of the casing, and made of something quite sturdy. As the plungers are guided to the end of the inclined slope, there's a sudden drop, which allows the plunger to fly freely, shooting the dart out as the plunger lines up with the hole. I'm not sure about the clip feed system. I thought of gravity fed, but it might not be fast or accurate enough, but if you use spring fed, the spring would have to be strong, which would deform the darts, in which case you'd need shells, and then you'd have a huge mess after you finished mowing everyone nearby down, not to mention having to carry rather heafty ammunition along with a rather heafty gun. ANYWAYS, I'll think about that later. The trigger would simply connect or disconnect the circuit for the motor. If the gun does use shells, there'd have to be a weak spring installed into each barrel and a hole in one part of the gun to eject it automatically. I got the idea for this fully automatic machine gun, and I'm rather fond of it, even if it's messy and slightly insane.

Any ideas, questions, comments and criticisms are appreciated.

Also, please note that it's not in my own power to create anything like this. If anyone on these forums could make anything even similar to this, my bets are on Captain Slug. So yeah, with that said, enjoy the idea at the very least!

Edit: Oh crap, did Captain Slug already plan something like this?

Edited by Yazzeh, 20 May 2007 - 04:26 PM.

[Dart Attack]

Edit: Oh crap, did Captain Slug already plan something like this?

Yes he did.
http://nerfhaven.com...?showtopic=6238

[NerfFreak]

Yeah, your a little too late. No offense though, you did do a good job thinking this through before posting a
"Wouldn't this be cool?" topic.

[Jergling]

Actually, no, this isn't what CS is doing.

But sorry, I have actually been making this exact design (trying to keep it a SECRET ) I mentioned that I was making the gun here: Longer Barrels thread

I got the idea from howstuffworks, you too? (yes, I've actually started building it, and I was going to try to restrain from posting about it.)

Also, I already have full plans for it, for a breech loading mechanism based on rotation.

Still: GMTA

Edited by Jergling, 22 May 2007 - 05:01 PM.

[CaptainSlug]

This was the original concept for CSHG well over a year ago. I was going to do this until I did the math on it and did some practical experiments with dart carriage methods.
It won't work. Atleast not without sucking horribly. It's also a difficult mechanism to machine so that it works.

Motors strong enough to pull back the strength of spring needed to shoot a dart will draw a rather significant current load and will require very heavy SLA batteries. If you wanted ranges around 90 feet you would need a motor with over 90lb of pull force at speeds below 70rpm. That would be a gear motor, and with that kind of mechanical load applied the current draw of said motor would be over 4 amps at either 12 or 24 volts.
You also have the issue of part spacings and the feeding of the ammunition, and the list of issues gets longer and longer.

Etc. etc. etc. and you end up with a 20 or even 30lb gun.

For this application per-pound a battery simply doesn't offer as much potential energy as an air tank. But getting an air tank setup to drive both mechanisms efficiently is difficult.
Electricity is just not a practical power source for a nerf gun setup if you want to reach beyond 30 feet.

Edited by CaptainSlug, 22 May 2007 - 05:52 PM.

[six-five-two]

I am pretty sure you didn't mention this Captain Slug, but the gun would also be REALLLY LOUD.

[CaptainSlug]

Ah, but I would consider that a fringe benefit.
"Rrrrr, CLACKPOP, Rrrrr, CLACKPOP, Rrrrr, CLACKPOP..."

[Yazzeh]

Well I'm just glad others are trying to develop something like this. I noticed that the gun would be heavy and unweildly, but that'd make it an awesome turret gun for some nerf war scenario. Like, a really huge nerf game. With 100 people or something ridiculous number.

Anyways, I think that the loudness of the gun would be half the fun. Strike fear into the hearts of your enemies in a half mile radius! MOUAHAHAH!

I noticed you were doing some kind of double helix thing-a-mabob with your CsHG. That looks a lot more reasonable than what I thought up.

Sadly enough, I'm starting to feel like there's no idea I could come up with that'd be fresh. I still want to make that hand-mounted gauntlet gun some day. That'd make my year worthwhile.

Right now I'm experimenting with FBR for new Stefans, since I haven't the skill to make a normal one yet. So far I've tried mimicing bullet-head shapes and it looks painful as hell. I made sizes from .5" to 2.5", and the .5 doesn't fare too horribly. I'm only posting this here because it'd be a waste to make a new topic for something this trivial.

Kudos on that gun in progress, Jergling!