Sponge Nerfer

I have been working on a project involving a triggered burst valve. I just got to home depot yesterday and put togethor most of the valve today. All thats left to do for it is put on the shrader and im done with the valve. Here is what it looks like.



This is a decent description of how the valve works that I put up earlier today.

The idea is to use an extremely powerful valve + large and high power tank to get a very powerfull shot. The catch is that in order to get all of this power it GREATLY lowers the rof of the gun. Many people I am sure will say that the terrible rof of the gun makes it a terrible weapon. This only the first stage of my project. After making this gun I have plans to creat a semi-automatic side arm that will compensate for the terrible rof of this gun and make it very usefull.

Questions, comments

-Sponge

This is just a realy easy to make, efficient, reliable and fun gun. The good old fashion ball valve rifle. Not much to describe, I was bored today, I had some old parts hanging around and I threw em togethor. I improved the ballvalve by attatching a metal dowel bent into a handel shape. The gun made for a nice afternoon of shooting stuff. The best part is that its pretty easy to figure out how to make yourself and you can change it to fit your needs and desires. I used a shrader valve for input, a section of 2" pvc as the main tank, and a 3/4" ballvalve to shoot the thing. It gets about the same ranges as a titan and is a whole lot cheaper (this badboy cost me a grand total of 0 dollars, I had all the parts, if you have absolutely nothing your looking at around 10$). Without further ado here are some pictures.

Overall Gun:



Compared to a Shoe:



The Tank:



The valve with its handel:



Cool first person view:



Well thats about it, comments are welcome as always.

-sponge

I have seen that there are severaly people that post on this site that use CAD (cumputer aided design) to their advantage while working on their various projects. Which kinds of software do you guys use? Is it ridiculously expensive? Will I be able to figure out how to use the program? Please answer a few of these questions.

I have been working on making a remote control car out of bits and pieces of electronics lying around for the past week. I have a working transmitter a working reciever and two working motors. The only problem is that the motors are not powerful enough to move the car. I have already tried to uses batteries with higher voltage, that got closer but still wasn't enough. It would be nice to end this project in the next couple of days so I need to know if any of you guys know anything about RC cars, and if you can help solve this problem. I know that gears would work, but in order to get gears on the car I would need to order parts of the internet and that would take time and money (neither of which I have). I also can see that getting a huge motor would do it, but once a gain that would take too much time and money.

If you guys can think of a way to help please post!

Thanks

-sponge

Rifled barrels have been in the back of my mind for quite some time now. The idea seems to have some potential. Nerf guns are not very accurate at long range and using rifled barrels might solve that problem.

A real gun uses rifled barrels in this way: When the bullet is fired it is deformed and slides inside the grooves of the rifled barrel creating spin, increasing range and accuracy. If you dont get it, think of a football. When a football player throws the ball he throws it with spin, this works in the same way as the bullet, because the football player throws it with spin it goes further and will reach his target with more accuracy.

The thing is, as I said when a reall bullet is fired through a rifled barrel is is deformed into the groves and thus is given spin. A nerf gun does not produce nearly enough power to deform a bullet in that way. However nerf darts are made of foam and foam is squishy. I think if you get a dart that fits very tightly into a barrel it would squeez into the grooves and when fired, would be given spin.

The last problem is, how does one rifle a barrel? Well here is my answer:



I think that by using threaded rods, such as those you could rifle a barrel. Simply pick a rod that has the same outer diameter as the inner diameter of you barrel. Then use some means of twisting the rod through the barrel carving grooves into inside of the barrel. Thus you have a rifled barrel.

Tommorow I will probably get to home depot, get some rod of the right size and try this out.

Tell me if you think this is possible, I dont want to waste cash on rod if it seems like a stupid idea to most of you guys.

-sponge