SpudFiles

So I'm not too active on the forum much so Idk if I am copying anyone.

In each cannon, I try to add in 1 new feature. In this cannon, I added in an air regulator in order to get multiple shots. I have pressurized this to 80 psi.

Backpack: 3x 2" by 1.5' with fittings (~200 cubic inches)

Chamber: 3/4" by 2' with fittings (~11 cubic inches)

Barrel: 3/4" and 1/2" (~11 cubic inches and 5 cubic inches)

Straps: I use leftover tubing to create straps and no they are not pressurized)

Firing Valve: 3/4" Mod Sprinkler

The weird extension thing on the backpack contains my gauge and at the top is a schrader valve.

So far, I can get 3 40psi shots when the backpack is charged to 80psi.

Changes I need to make:
-Replace the tubing from the backpack to the chamber with a higher pressure-rated tubing (currently only 40psi). Planning to use some of those braided tubing.

-I'll probably make a larger chamber (double the size to ~20 cubic inches)

I believe I'm going to get flame for this but I tried using search and so far I haven't had any luck with it:
How to make a mag

I will upload damage pics soon (in a few days)

I hope you guys like Reminds me of Ghostbusters

''Who you guna call?! GHOSTBUSTERS!

Nice @ clean cannon, i love the regulated backpack:D

Nice clean airgun, but you should try to avoid posting your face on internet especially if its illegal where you live.

I have built a paintball magazine wich can hold 5 rounds, its pretty easy to build out of aluminium sheets and wood.

Where have you got the air regulator?

Looks good. I like the backpack.

How do you let air flow from the backpack into the chamber?
Slow leaking? Manual valve?

Cool cannon, i really like the back pack. Whats your primary ammo? Have you tried nail darts?

I'm thinking you should flood the backpack halfway with water and get one helluva water gun.

well that might not work as he has to be taking water from the bottom other wise the air will just come out the top, have a look at the followinghttp://www.thehalls-in-bfe.com/UberSoak ... oaker.html

Thank you. I'm planning to get some high rated tubing tomorrow so I can bring my chamber to 80 psi.

I got my regulator at Harbor Freight. It refilled itself to 40 psi in about 3 seconds.

I might make some nail darts but I haven't yet. I have an 8" metal rod (1/4" in diameter) and it has some tape at the end. I shot it at a plastic 3 ring binder (like the ones people use for school). I'll upload pics in a few days. I'm going to change my barrel to 1/2" and use AA batteries. Is there a way to make a magazine for AA batteries?

Thank you for all the feedback on the backpack I thought how annoyingly heavy a cannon with 2 chambers an a barrel would be.

bradisfun wrote:well that might not work as he has to be taking water from the bottom other wise the air will just come out the top, have a look at the followinghttp://www.thehalls-in-bfe.com/UberSoak ... oaker.html

Well than couldn't you just wear it upside down?

probaly but some of the valves might not work with water (e'g: check valves..) and i dont think that the regulator would let water go thrugh at least not much and u would need a good nozle, and have a look at super soaker centrail (http://www.sscentrail.com,sry cant be botherd getting a link),im on there to.BTW if u want range then u need velocity. go figer

I've made plenty of water cannons. I've always just loaded the barrel with water O.o or just get a hose and a couple fittings to attach it onto a barrel?

It's quite fun to shot this in water cause it keeps bubbling

Here is the Peacemaker MK2. It was designed originally to shoot water, which I ended up shooting some solid stuff cause it was fun xD

http://www.spudfiles.com/forums/peacema ... 17884.html

hey Lokoyo have u ever had a look at super soaker centrail?
if not i think u should,altho there homemades arn't very good!

Yeah, but I haven't been on for a long time. I do recall that this website is really close to instructables and super soaker central. How ever, I'm not currently working on projects that are limited to just liquids.

ohk
well i have tought a bouth makeinga gun that will fire both

I recall I heard that a ball valve and a 4:1 CB Ratio was good. The ball valve because it good flow and it doesn't have to be fast cause the water is heavy (probably more true if you have a lot of water like my cannon which was about half a gallon) and 4:1 because you need plenty of air to push the water.