Jump to content


Photo

My 2nd Homemade With Hpa And Interchangeable Barrels

my 2nd gun using hpa and a pressure washer handle. It's almost com

2 replies to this topic

#1 Gutzenheim

Gutzenheim

    Member

  • Members
  • 19 posts

Posted 08 March 2008 - 09:46 AM

Hey guys, here is the second homemade I've made in my nerfing expedition. It integrates an hpa tank, interchangeable barrels, and a pressure washer handle. WARNING: Building this type of gun can be very dangerous if you don't use rated valves, I had a bad experience with that, I'll tell my story here soon. Anyways for now though, here's my almost complete, untested gun. I have high expectations for it.


The first picture of it here is just the complete gun...fir the most part.
Posted Image

The second pic is a closeup of the piping I took care of, I'll explain the piping in detail directly beneath the picture.
Posted Image
As far as piping goes this gun is really simple...no glues, no mess, etc. The piping can though, believe it or not be a little pricey. Starting from where the piping starts at the handle I have a garden hose adapter they sell with the fittings for pressure washers that's used to connect to the spray gun to the hose. Next I have a 3/8 elbow. connecting to a 3/8 male to male cl nipple. Next up is a 3/8 to 3/8 or 3/8 to 1/2 female to female, I can't remember exactly. Then I screwed my regulator into that. An hpa tank screws into that and then you can regulate the pressure at which you fire, never have to pump, and it allows for higher pressure for creating other sport barrels such as paint ball and airsoft.

The handle and trigger mechanism itself was chosen based on the fact that the valve in most pressure washer handles can handle as much psi level as is in the hpa tank (3000psi). Don't skimp on your valve when working on this project. I tried to regulate and just use a sprinkler valve. Long story short we thought we adjusted the regulator right, then realized the tank wasn't screwed in. Upon screwing the tank in the system over pressurized and a sprinkler valve blew up in my face. No one was hurt and I jumped out of the way of the hunk that flew at me. It did actually blow an entire half off the sprinkler valve. I have a picture somewhere of what it looks like now. I'll post it if I find it. In short be careful!!!

At this point I've made one quick reload barrel of which I'll show below. I have my designs together to create the airsoft and paint ball barrels and now I just need to make them. I also need to add a handle to this barrel.

Anyways, Here's the quick reload pictures.

Posted Image

Posted Image

Posted Image

And here's my dremel setup to create all this.

Posted Image



Also, to connect the barrels I'll be screwing a 1/2 cl nipple into a 3/4 to 1/2 adapter and screw the other half of the cl nipple into the end of the spray gun.
At this point I can't put stats and such because when my first valve blew I lost all my air in the tank and haven't got a chance to get it refilled since. I also have a ball barrel not pictured. Any questions You might have I'll answer to the best of my knowledge.

~~Gutzenheim

Edited by Gutzenheim, 08 March 2008 - 09:52 AM.

  • 0

#2 analogkid

analogkid

    Member

  • Members
  • 425 posts

Posted 08 March 2008 - 09:54 AM

Wow, man that looks really good. I'm used to ugly white PVC on ugly white PVC construction. I'm confused though, this is a pistol? What is this thing?Posted Image
Seriously though, clean, good looking, fabulous.
  • 0

#3 Gutzenheim

Gutzenheim

    Member

  • Members
  • 19 posts

Posted 08 March 2008 - 10:55 AM

actually I was going for a rifle at first, but as things changed...well you get the idea. I do need to cut the barrel to length though, you're correct
  • 0


0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users