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Backpack Cannon V2

Posted: Tue Jan 19, 2010 6:12 pm
by deathbyDWV
This is a cannon that I improved upon from this...

http://www.spudfiles.com/forums/the-bac ... 18886.html

The thing on the bottom is a small hand pump... it takes a while to pump up but when i do... it'll shoot a golf ball 150 yards. I was really impressed with the power...

The changes I've made are...

new gb barrel

added a quick connect

put on the pump

painted it...


Image


Image
Hmm...i kinda need a haircut... :?

Posted: Tue Jan 19, 2010 6:16 pm
by irisher
put on the pump
I do not see the pump in the photos.

Posted: Tue Jan 19, 2010 6:17 pm
by maverik94
Not bad, Not bad at all!!! 150 yards with a sprinkler valve is pretty impressive. What pressures are you running it at? For your next cannon you should try your hand at a piston valve, you will be impressed with the performance spike. 8)

Posted: Tue Jan 19, 2010 6:26 pm
by Lockednloaded
I do not see the pump in the photos.
if you look at his last version you can see the fill valve at the bottom, so i assume that the pump attaches to that and is housed inside the tees.

Posted: Tue Jan 19, 2010 6:35 pm
by deathbyDWV
Actually... I've already conquered the piston...

http://www.spudfiles.com/forums/4in-coa ... 18237.html

And I'm about to finish another piston gb cannon...

The pump is hidden inside the elbow, two tees, and another elbow. Connected to the bottom of the cannon...

Posted: Tue Jan 19, 2010 8:52 pm
by maverik94
Actually... I've already conquered the piston...
Ah yes, nice, I forgot about that!

Posted: Tue Jan 19, 2010 8:57 pm
by irisher
The pump is hidden inside the elbow, two tees, and another elbow. Connected to the bottom of the cannon...
Where is the handle?

Posted: Tue Jan 19, 2010 9:01 pm
by veginator
Its the elbow closest to the quick disconnect. It doesn't have any epoxy on it.

Posted: Tue Jan 19, 2010 9:03 pm
by irisher
I understand now. That is pretty clever.

Posted: Tue Jan 19, 2010 9:04 pm
by deathbyDWV
The front elbow isn't actually glued on... it is the pump handle. When pushed all the way down it fits to the chamber. I might be able to get up a pic tomorrow. Its dark here right now...

edit... you beat me to it veggie... good job!

:lol: :lol: :lol: veggie :lol: :lol: :lol: