SpudFiles

i am building my first pnuematic potato gun and srinkler valves pose a large problem for me.
my first problem is that i dont have a 24v power source. any solutions?

my second problem is that they are expensive (kinda) and i want a cheaper alternative. any solutions?

and finaly the alternatives are all slower (ball valves especially) in opening. any fast alternatives?

i am making a over-under design so i cant easily put in a piston/diaphragm

pnumatically modify the sprinkler valve.
the valves are $10-18 ar any home depot. get a 1 inch orbit watermaster
youre not gonna get the same resolt as a sprinkler valve for cheaper.
Look Here

Um...If you need 24 volts just wire three 9-volts to it, that's what everyone else does, just wire batteries so their voltage equals 24 or a little higher.

hmm...yes the 9volts will work but i have read of them depleating quickly...i this true?
also i said that i wanted a cheaper alternative to the sprinkler valve...(if all else fails i can easily get one but i would rather not spend 17 bucks...or my dad wouldnt )

thanks any way though i might just have to go with the sprinkler valve

also is this the right kind to mod?

no get this kind

well if you cant spend money you shouldnt spud gun

ok how muh do spend on spudding its al about being cheap (kinda) we build our own guns for gods sake i mean sometimes people dont want to put there whole life and money into spudguns. I mean some people on spudtech actually have lives

but what if my hardware store doesnt have that type

and i can easily find the money for it but i want to go with somthing simpler for my FIRST cannon
im probably gonna go with the sprinkler

Definately look into a piston valve. Before, I did not think I could make an efficient one but now have a model, and the real one is on the way.

Basically, its easier to make than one would think.

i duno if any u guys watch mythbusters but like last night they had a giant pnuematic chicken cannon. they used a huge butterfly valve with an extention so it is easier to pull. may i suggest that

heres a howto on modding a water masterhttp://www.spudfiles.com/forums/viewtopic.php?t=305&

also here is a video on that same thinghttp://www.bcvids.com//dload.php?action=file&file_id=3