37 replies to this topic

[mysterio]

I meant adding the spacer to the drum, not the dart.

[KainZero0133]

I like how this is turning out. Perhaps you'll one day make a tutorial for people who wish to emulate this grand idea. I actually am considering a wrist/arm mount for a semi auto gun plus a trigger at the palm of the hand but make the gun removeable. Think of it as a jacked up holster.

[shardbearer]

What if, instead of a motor to advance the darts, you just used your other hand. Attach a bolt to the pusher and slide it back and forth real fast slamfire style to create full auto speeds. I think a spring or bungee pulling it forward would be good too, so you can easily do single shots by pulling back and releasing, and it doesn't flop around and shoot darts when you don't want to.

Also, what's going to be connecting the two sizes of PVC in your clip? One of them looks like an endcap with a hole in it. What sizes? I would suggest Mcmaster constant force springs for your clip.

Another idea is to have the magazine not all the way seated, and then you push the magazine down to fire which would bring the darts into the flywheels, and once one fires, the clip pushes the next one in. You would tap the clip to shoot one, and hold it down for a very fast full auto.

Edited by shardbearer, 29 January 2012 - 07:42 AM.

[PVC Arsenal 17]

Awesome ideas.

I think the around-the-arm rotary mag will prove cumbersome and difficult to build. There are many challenges associated with rotating and inserting the darts that way. A quick-change linear mag system is probably easiest.

I'm interested to see where you take this. Peering into the mind of another engineering student with similar interests is always fascinating.

Edited by PVC Arsenal 17, 28 January 2012 - 11:20 PM.

[KainZero0133]

had this thought last night after looking back at your second drawing, I liked the mechanism and flywheel setup but would it be possible to incorporate a mini magazine into the top of that so its not in the way too badly, plus you'd have 4 or 5 darts on hand (pun intended). add a clip lock/release mechanism and you could add in 7-round magazines or more (not that you'd want to due to weight/size.

[Ranger Dave]

I like how this is turning out. Perhaps you'll one day make a tutorial for people who wish to emulate this grand idea.

I'm sorry if i'm misunderstanding what you mean but i would just like to point out that is is all one write up and so soon as i figure out how to build the dart clip it will be included in this write up. Don't worry as soon as i figure it out i'll make sure it is posted.

What if, instead of a motor to advance the darts, you just used your other hand. Attach a bolt to the pusher and slide it back and forth real fast slamfire style to create full auto speeds. I think a spring or bungee pulling it forward would be good too, so you can easily do single shots by pulling back and releasing, and it doesn't flop around and shoot darts when you don't want to.

Also, what's going to be connecting the two sizes of PVC in your clip? One of them looks like an endcap with a hole in it. What sizes? I would suggest Mcmaster constant force springs for your clip.

Another idea is to have the magazine not all the way seated, and then you push the magazine down to fire which would bring the darts into the flywheels, and once one fires, the clip pushes the next one in. You would tap the clip to shoot one, and hold it down for a very fast full auto.

The reason that I am using a motor is because i need my other hand free to hold my Uber-Vulcan, so i have to make sure that my secondary weapon can be fired quickly and easily because Zombies are fast. If you don't mind using both hands to use your secondary then by all means a bolt would be easier. The Clip will most likely be held together by a combination of screws and epoxy so i could take some of the pieces apart to fix if need be. I haven't settled on a design exactly yet because i still don't know how to fix the problem of the sonic darts having different diameters. As soon as i come up with a fix for that i'll finalize the measurements and post blueprints for the pieces. So far the outer diameter of the entire rig is 7.5 inches and the interior diameter is 5.5 inches. I'l also keep the Mcmaster constant force spring in mind.

Awesome ideas.

I think the around-the-arm rotary mag will prove cumbersome and difficult to build. There are many challenges associated with rotating and inserting the darts that way. A quick-change linear mag system is probably easiest.

I'm interested to see where you take this. Peering into the mind of another engineering student with similar interests is always fascinating.

i agree, i am not exactly making this project easy for myself, but as an engineer i'm sure you can relate to wanting to solve a challenge in the most awesome way possible. If you have seen the quick 16, you'll notice how the built in clip is not actually straight. The reason for this is that when you start to stack the sonic darts they curve because of the inconsistent diameter, so if i do build a linear clip i'll have to build that curve too. The reason that i want to build mine around my arm is because it is more stable than having something sticking out a foot in some direction. But again I wont be able to use my other hand very much so thats why i want a large ammo capacity instead of swap-able clips.

Edited by Ranger Dave, 29 January 2012 - 08:57 PM.

[cheyner]

Bringing the Quick 16 to mind, you should maybe move away from having it be a drum shape. Make it more of a gradual spiral shape to accommodate the large head on taggers. You could also make your clip larger this way as it would be spiraling up your arm, limiting clip size to what you are comfortable having strapped to your forearm, you could go pretty much all the way to your elbow.

[PVC Arsenal 17]

If you have seen the quick 16, you'll notice how the built in clip is not actually straight. The reason for this is that when you start to stack the sonic darts they curve because of the inconsistent diameter, so if i do build a linear clip i'll have to build that curve too. The reason that i want to build mine around my arm is because it is more stable than having something sticking out a foot in some direction. But again I wont be able to use my other hand very much so thats why i want a large ammo capacity instead of swap-able clips.

I actually meant tube mag. You can cut a slot into the tube and use a finger through the slot to push on the darts from behind. Mount the finger to a constant force spring or even a threaded rod and you can easily get it to travel the length of the tube. Yes, capacity is limited due to the length of stock darts, hence the necessary "quick-change" feature.

For my purposes at least, several small & removable magazines are better than one large & fixed magazine unless you can find a way to reload it very easily. With a drum that will be challenging. You'd have to load one by one while overcoming the spring mechanism. That process may leave you vulnerable.

On a related note this video may stimulate some ideas:

[Ranger Dave]

On a related note this video may stimulate some ideas

I find it really funny that you posted that video, you know how they say great minds think alike. I too have been toying around with guns mounted that way and here are my Uber-Vulcans that i keep mentioning.

The one on the left is Redemption and the right is Serenity. Before I get flamed for using vulcans just be aware that they are very good guns for horde fighting, When building them i treated Split's vulcan write up as holy scripture. For a nerf war these guns are complete shit, however when you have 40 zombies rushing at you they are completely wonderful. they weigh less than a stampede because i carry the batteries around in a Camel pack and so far its a great set up. they are still unfinished and i plan on making a write up on them. Vulcans, like flywheels, have potential however to reach that potential you have to disregard everything that you know about them.

I've had these built for about a month now, i want to build a PVC pipe feed system from a backpack to the gun and use a 200-400 dart chain. This will probably be a summer project because all my tools are at home, I realize that it is simpler to use a stampede or a swarmfire but the vulcan is just so intimidating.

*EDIT* my origional plan was to dual wield Twin Uber-Vulcans, however the one on my left hand will be replaced by my Sonic Gauntlet. This way i can take Serenity on and off and re-load.

Edited by Ranger Dave, 29 January 2012 - 10:45 PM.

[Pichu47]

If i can find the rest of the Tommy 20 that the Flywheels came from i would totally use it, but if not i'll have to replicate it somehow.


So i spent about half an hour just messing around with my design and i made a few changes.

I have to now get a hold of these parts.

I like this design. It's like a dart bracelet. Very manly and practical.

[Ambience 327]

I had a thought as to a solution to the problem I mentioned. What if you made a thin, cog-like piece that would go in the rear of the drum, to hold the tails of the darts separated. (think of a thin-sliced cross section of the feeder mechanism in a Raider drum). Your spring would have to be strong enough to both move the drum's dart pusher and the darts AND turn the cog, but it might solve the issue. (The pusher for the flywheels would have to be small enough to push the dart without bumping into the cog, and the next dart would advance once the flywheel pusher slides back out of the way.)

I think you can probably figure out what I mean, but if you need me to sketch up a crude diagram, I can do so.

[Ranger Dave]

I had a thought as to a solution to the problem I mentioned. What if you made a thin, cog-like piece that would go in the rear of the drum, to hold the tails of the darts separated. (think of a thin-sliced cross section of the feeder mechanism in a Raider drum). Your spring would have to be strong enough to both move the drum's dart pusher and the darts AND turn the cog, but it might solve the issue. (The pusher for the flywheels would have to be small enough to push the dart without bumping into the cog, and the next dart would advance once the flywheel pusher slides back out of the way.)

I think you can probably figure out what I mean, but if you need me to sketch up a crude diagram, I can do so.

I understand what you thinking of, I was thinking of something like that too. I plan to have a better drawing up soon that will include the new part and start assembling material soon, but unfortunately this week is mid-term week at OSU so I most likely won't have it up till Thursday.

[kingjulien]

Not sure if this has been said yet, but you could do an inline blowgun clip that has a tube leading from the back of it into your mouth. Instead of having to bring the back of the inline clip into your mouth, you would just keep the tube in your mouth and blow into it to push darts into the flywheels.