Matt31

I am making a giant manual water pump with 4" PCV. I need a giant plunger head to fit inside, a lot like a homemade nerf gun. The problem is i can't think of anything to make the plunger head out of because of the size. Can throw some ideas at me? Thanks in advance. . .

For all you 007 Nightfire fans! So I was at my local odds and ends store yesterday when I noticed this little device. It advertised you being in your drive-way and turning the lights on in your house. It plugs into the wall, theres an outlet on the bottom and a little remote on a keychain. I also found a little motor with a small plastic gear on it. At this point I thought remote controlled RF20. So this morning it came all together. I had to extend the trigger for that the little motor to pull the trigger, I did this by gluing some wood to it so there would be more torque on the end of the extension. I then tied some string around the end of the wood piece and up the the motor. Then plugged in the motor via extension cord to the remotely-turning-stuff-on-thingy, put all of it on a tripod, and there you have it remote operated RF20.







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I had an attempt at making a semi-auto maverick, quite a while ago. It didn't turn out as I had hoped, there was a massive amount of air leak between the turret and the plunger. About a week ago I found it in my closet and decided to try and just glue a coupler on it and see how that worked. With an RCSB barrel assembly on it, it gets about 80 ft, 6 shots, pretty much semi-auto. (Point down to load, then shoot.) The tank hold 20 shots worth of air using the RCSB. It is also very good with a shot gun barrel, or any other attachments.

So, I recently finished my homemade rifle. The bolt and plunger are similar to Boltsniper's FAR, and the rest is random stuff I threw together to make it work. It gets about thirties level and this is where the problem comes in. The dart seems to be sailing along fine at about 20-25ft and then it dives. It is rather strange, so the question is, what may be causing this and has it ever happened to you?

The gun:


Loading a shell:

Here is something I threw together this morning and I am fairly pleased. Its a cheap shotgun style paintball gun, which i sawed half the barrel off of and put a basic CPVC breech on. Also a cardboard gravity-fed magazine. It works quite well however, it is too powerful. It actually rips the darts in half when it fires. This maybe because of how the beech is constructed. I think it could be effective for longer ranges if I can work out a better breech that suits the need.