SpudFiles

I thought it was time I posted a cannon so I am posting this one I call The "Thunderpup" SPECS:

Valve: 3/4" Toro (because that's what I had)
Chamber: 1" Sch 40 x about 47"(elbows make it difficult to meas.)
Barrel(s): 1" Sch 40 x 30"(not including coupling)
* other barrel is 1/4" inside diameter or 3/8" ID Picture below
Handle: From a tape roller handle
Trigger: Husky blow nozzle w/ pnuematic hose and wire tied to handle.
*(It actually work very well ergonomically)


This pic shows how the smaller barrel sleeves together. The middle size is lamp pipe threaded through a 3/4" brass hose fitting which threads onto the 3/4" threaded Toro valve.


This was going to be an awesome damage shot. I shot some fragments left over of a spud and the cherub's head came clean off!!!(ooops)
No time to photo because,
(My roomate was getting home so I glued it back before she'd see)

So I did this damage pic instead because I couldn't fix it with super glue anyway
That shot was done at probably 70-80 PSI with (favorite) 1" barrel and a plastic shopping bag wadding and rocks for shot. The pot is bigger than it looks in the pic too.
I also shot an old crossbow bolt through it once with the 1/4" Barrel.
Future mods will be to make it breach loaded and maybe build another blow gun dart barrel. Also maybe test an auto refill system possibly

BTW I only used the Toro valve cause that's all had and the 1" PVC was 5 foot something and I found it in my garage. 8) 8) 8)

Wow that is cool I like the pistol grip and the gun overall. Good job man keep up the good work!

nice gun, it's a simple working design, i like it

Nice and simple. Is it your first? If so, congrats on not giving it a giant cb like most first-timers (me included). One ergonomic suggestion I would recommend would be to cut off the back elbows and replace them with street elbows. It just gives the gun a more compact look.
BTW, don't go overboard with that orange pump. I melted some parts of mine by over pumping.

Neat unit there Thunder...you do good work on your guns...

mopherman wrote:Nice and simple. Is it your first? If so, congrats on not giving it a giant cb like most first-timers (me included). One ergonomic suggestion I would recommend would be to cut off the back elbows and replace them with street elbows. It just gives the gun a more compact look.
BTW, don't go overboard with that orange pump. I melted some parts of mine by over pumping.

Thanks for the replies guys,
@mopherman, This is my first sprinkler valve but yeah, my old combustion I had years ago had a huge C:B.
I've owned a lot of airguns and ball valve stuff and luckily been reading SpudFiles a while.

And I would definately look for the street elbows for anything larger diameter. This ones OK because it makes a good shoulder stock.
I was looking for a ladder boot to cover the elbows but couldn't find the right one.
Good thing you told me about that pump. I really only have to pump it about 10 times for fun at 25-30 I really have to push with my weight.

Things I forgot to mention, the hose is a little long and I plan to shorten it as much as possible but I like to shoulder fire it.
Also the barrel brace is 2x2 and everythings painted with $1 home depot spray paint, the hose clamps and all that touch the paint are wrapped from underneath with electrical tape.
8)

Very sexy cannon, nice clean design.

Erganomic, and effective.

Lookey here, quite a nice piece there bo. Looks clean, effective, and most importantly, fun

keep it up 8)

biggsauce wrote:Lookey here, quite a nice piece there bo. Looks clean, effective, and most importantly, fun
keep it up 8)

Thanks, Unfortunately I had already glued the elbows before you told me to use street elbows in the post I made titled "Modded Elbow?"

It worked out OK and I'm still looking for the ladder boot I was thinking of putting over the elbows for a cool shoulder stock.

I built this one out of stuff I had sitting around and I still haven't set up a work bench to organize tools/ more advanced builds, at the place I am staying now.

I am planning to give it to my nephew for his 14th B-day,
(He's taller than 6' already so the stock will work)
Incase his parents won't allow me to present it to him, I have a 1" valve and will be building a nerf football launcher probably painted brightly to look less like a "Gun" and then I'll post that one too.

Dang pvc, I was hoping my next project would be a metal cloud or a pnuematic "Metalstorm" concept with the 1" as one of several valves
And GB's loaded in one barrel like a roman candle. 8)