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#103275 The Viper

Posted by jwasko on 30 April 2007 - 08:51 PM in Homemades

Truly automatic? Surely you mean truly "semi-automatic."

I understand what you're trying to do. I look forward to seeing it completed. :)

You might find the "bike pump" extending when the pressure chamber is filled - you would need a valve somewhere on the tubing to prevent that, or you might not, depending on the pump.

That's definitely what I meant, I just forgot to put "semi-" there. Thanks for pointing that out; I fixed the error.

Tanks for the tip about the bike pump, as well as your support. I look forward to seeing it completed, too. :P

#103202 The Viper

Posted by jwasko on 30 April 2007 - 05:10 PM in Homemades

1. Pick a different gun to base this on. The maverick has a sucky turret seal interface.
A Dart Tag Blaster would be easier to adapt without significant problems.

2. Your current setup isn't semi-automatic.
3.You should consider using one directional control valve instead of two solenoid sprinkler valves.
4. In the current configuration that solenoid sprinkler valve labeled "B" is pretty useless and could be replaced with a simple ball valve since it's not actuated by the trigger anyways. You'll want to toggle that valve inbetween shots to avoid dumping the entire tank every time you press the trigger.

1. Yes, I know. But, I like the Mav and I may be able to improve the seal somehow.

2. Actually, I believe that it is. I must not have explained it well enough. Or I'm completely missing a giant flaw in my plan.

3. I didn't know what that was at the time (and still don't, right now). I'll look it up and see about using it.

4. This must be te part that you missed, or that has a flaw I don't see. In my original design, I was indeed using a ball valve instead of solenoid valve "B." However, I thought of a way to make the thing truly semi-automatic using a second solenoid. I'll try to explain it better than in my first post.

Posted Image
The diagram's a little ugly, but it works I suppose.

So, the trigger has three "stages." In the first stage, when it's not being pulled at all, the "trigger contact", which is directly connected to the batteries, is touching "Contact B," which is connected to solenoid B which in turn is connected to the batteries. This completes a circuit and opens solenoid valve B.

In stage two, the turret is rotating the next barrel into place. Also, the trigger contact, because it is connected to the trigger, has moved back and broken the circuit with "Contact B." The trigger contact has not yet touched "Contact A."

Once the trigger is pulled all of the way back (stage 3), the trigger contact touches "Contact A," which completes the circuit for "Solenoid A" and opens it thus releasing the pressure in the "pressure chamber. "Solenoid B" is still closed, thus maintaining the air pressure that is stored there.

Thank you very much for taking a look at my plans, Captain Slug. If it turns out that I didn't understand why this isn't semi-automatic (as you said it wasn't), please let me know. All others are welcome to point out mistakes as well, of course.

#103162 Star Wars Dart Shooters

Posted by jwasko on 30 April 2007 - 01:39 PM in Modifications

The main problem, I think, is getting the plunger to lock back further (i.e. you pull it back 5 inches instead of 3).

Ther are two ways to do this:

1. Move the catch mechanism back (what frost vectron mentioned).

2. The catch face on the plunger shaft could be moved forward, away from the catch mechanism. Perhaps it would be possible to just dremel in a new one, maybe just a short distance from the plunger head?

In either case, the catch mechanism and the catch face be farther apart when the plunger isn't cocked back. This results in a further distance to move forward when the plunger is released.

#103161 I Finally Got A Longshot.

Posted by jwasko on 30 April 2007 - 12:56 PM in Modifications

So I guess I was wrong about TheVeg, and wrong about it needing reinforcement. Oh well...I guess I underestimated Hasbro. As soon as I first saw how it was put together, I sarcastically said to myself "Oh, that's never going to break. :rolleyes: "

And apparently NH counts spaces when listing alphabetically...for instance, "the punisher" is before "thecheat."

Anyway, alright. Once I'm finally done with this school year (3 days!) I'll suck it up and go for it. Plus, I think I might actually be able to accomplish Theveg's brass breech mod...hopefully.

#103153 I Finally Got A Longshot.

Posted by jwasko on 30 April 2007 - 10:40 AM in Modifications

Pokemon Gold/Silver = as awesome as Red/Blue (if not moreso)...and I didn't get any more after that.

Anyway, I'm probably going to be replacing my LS spring soon (or just adding one), but I'm a little afraid that the back cover of the plunger tube (what the spring pushes against) is just going to snap off. Does anyone have any tips for reinforcing it?

I see two things that need to be reinforced:

1. The plastic "plate" itself, along with the tabs attached to it (which is where the screws go through). This could be reinforced by simply placing a piece of sheet metal over it. The metal would also go over the tabs, and the screws could go through it.

2. The tabs on the plunger chamber itself. These could snap right off, and I have no idea how they could be reinforced.

Or should I just stop being a pussy and add a spring?

PS: I searched, and there are no members named "theveg" on NH or NHQ. Just letting you know.

#103149 Your Weapon Setup.

Posted by jwasko on 30 April 2007 - 10:10 AM in Off Topic

I just got started modding fairly recently and thus haven't been to any real wars. But, back in the mid 90s I rocked it hard with a RatchetBlast (with any one of several single shot shot sidearms), or just a Defender T3. All were unmodified, of course; heck, I didn't even get a computer until 2001, let alone know about the NIC.

#103123 Pano (pittsburgh Area Nerf-out)

Posted by jwasko on 30 April 2007 - 12:01 AM in Nerf Wars

Hope you heal well and swiftly, Rambo.

PS: Barring unforeseen circumstances, my brother and I will attend.

#103093 Lightning Blitz Modification.

Posted by jwasko on 29 April 2007 - 09:19 PM in Modifications

Good mod, it seems like that would be an excellent shotgun-like sidearm. Do the darts get a decent spread, or do they pretty much just fly straight?

By the way, Forsaken_Angel, love your work! Is the "latest massive project" Nerf-related, or school-related?

#103091 The Viper

Posted by jwasko on 29 April 2007 - 09:13 PM in Homemades

So we all know that the Maverick has terrible range but great rate of fire. Carrtoon improved the range by integrating a NF plunger, thus giving it near-NF ranges. However, I wanted to make something with great range while improving on the Maverick’s rate of fire; thus, the idea for the Viper (design 3) was born. It may or may not be practical in a war (I think it might), but in any case I think it would be pretty awesome as well as fun to build.

Posted Image
Note: Picture not necessarily drawn to scale

Note: I put this in the homemade section because about half of it is homemade. On the other hand, the other half is a Nerf gun made by Hasbro. So, I guess I’ll leave it up to the moderators to decide where they want it.

Now, I’ll give a little explanation of how this thing works, coinciding with the labels on the picture (“A” through “J”)

The Air System
A. The pressurized air storage tank. It will be made of 2” PVC and should be pressurized to about 80 or 90 PSI

B. The first solenoid valve. When opened, it allows the air from the pressurized air storage tank into the pressure chamber.

C. The pressure chamber. It will be about the same size as an AT2k pressure chamber or larger, thus (hopefully) giving similar ranges.

D. The second solenoid valve. When opened, it allows the air in the pressure chamber to move forward in the barrel. Note that the first solenoid valve will have to be closed in order to prevent the whole storage tank from being released as well.

E. The Mav turret will have had CapainSlug’s “end-clip” mod done to it, along with extended CPVC (or possibly 9/16” brass) barrels added to it.

F. A bike pump, which could be used to fill the pressure chamber for single shots.

The Electrical System
G. Three 9 volt batteries, wired in series, to power the solenoids

H. On/Off switch turns off the whole system.

I. Contacts. These will work similarly to the NF’s light, but if you noticed there are a total of three contacts here. The center contact is attached to the trigger. When not being pulled, the completed circuit opens the rear solenoid (B.) to fill the pressure chamber. As the trigger is pulled, the first circuit breaks and the rear solenoid valve closes. Continuing the trigger pull, the barrel lines up with the air output point (like a regular Mav) and the second circuit is completed. This opens the second solenoid (D), firing the Viper.

J. Another On/Off switch. It will break the circuit for the rear solenoid (B.) even when the trigger is forward, thus allowing the use of the bike pump to fill the pressure chamber and not the storage chamber.

While I'm posting, I hope that someone could answer a quick question: is my method of filling the pressure chamber for single shots going to work? All it is is a piece of tubing (vinyl, I think, is the one to use) that will be on a fitting that will be epoxied into the pressure chamber. Do I need some sort of valve for this to work, or will just running it into the chamber work? Also, do you suggest some sort of cutoff valve for when I’m not using the pump?

Also, any other suggestions for improvement of the design would be much appreciated.

PS: I know that some persons don't like people who just post ideas. I'm sorry, but I just wanted to see if I was doing anything wrong in the design before wasting money. I promise that it will be built eventually, in some form, unless I completely messed up and this won't work at all.

#102978 Barrel/clip Idea

Posted by jwasko on 29 April 2007 - 01:07 PM in General Nerf

You stole my idea! Just kidding. But seriosuly, I had an idea a while back similar to this, but not using the clip. Actually, yours reminds me of the M1 Garand. I like it.

The idea of using a spring to force the "barrel adapter" up against the shell is cool, but it might slow the plunger too much, thus decreasing the range. Instead, you could link the "barrel adapter" to the trigger.

The other things you have to consider is getting the dart to go smoothly into the fixed part of the barrel, and holding that barrel in place. That last part is pretty much where I'm stuck on my homemade.

#102975 Hey Guys, Aussie Newbie Here

Posted by jwasko on 29 April 2007 - 12:53 PM in General Nerf

Just a tip, you may want to try modding one or two other, simpler nerf guns first (if you haven't already, that is) before trying to tackle a longshot.

Nice armor, by the way. Was it expensive to make?

#102973 Bbb Question/ Idea

Posted by jwasko on 29 April 2007 - 12:46 PM in Modifications

Actually, you don't even need to open the back half in order to replace the spring.

On the other hand, if you replace the main spring, it's possible that you may have to put in a stronger catch spring. In which case, you will need to open the back half.

#102972 Max Force: Rattler

Posted by jwasko on 29 April 2007 - 12:34 PM in Modifications

Nice mod. And I'm actually im the process of purchasing a rattler right now...

I wonder if a slightly longer barrel would improve range at all? But, it might not have enough power to push a dart down even a 4"-5" barrel

That original idea for the 7-shot revolver is also very interesting to me; I actually had an idea for a homemade revolver carbine-style gun that had a single stationary "accuracy barrel" (as it's called in that MS paint diagram). Mine was going to use several sizes of brass that interlocked, effectively creating a long, nested brass barrel.

#102903 I Finally Got A Longshot.

Posted by jwasko on 29 April 2007 - 12:34 AM in Modifications

As far as getting AR-15 springs on the cheap, try finding a "gun show" in your area. I got mine for $2 at the Pennsylvania Gun Collecter's show just last month...or was it just a couple weaks ago? Stupid memory.

I plan on using it for a homemade, by the way, so I don't know anything about fitting one in a longshot.

#102870 Future War Possibility

Posted by jwasko on 28 April 2007 - 08:40 PM in Nerf Wars

I'm only about 2 hours away, so I suppose it's possible that I may be able to come.

Also, you may want to tell your members about PANO (Pittsburgh Area Nerf Out) this summer, considering it's only about 2 hours from you guys. I'm sure Master Yogurt, the host, wouldn't mind having some more people.

#102697 Children And Small, Furry Animals: Beware

Posted by jwasko on 27 April 2007 - 10:54 PM in News

I wanted to use my first post ever on NerfHaven to thank One Man Clan (and the rest of the staff here), for validating my account.

Congratulations and thanks again, OMC.