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Heres My Plans. Finally

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Heres My Plans. Finally

Unread postAuthor: BrodMan » Thu Nov 29, 2007 7:44 pm

Heres my plans. Hope the link works. Youll notice i said some kind of fill valve, and cap, and i was wondering if you could help me with that. Well hope the link works.

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Unread postAuthor: MrCrowley » Thu Nov 29, 2007 7:49 pm

Fill valve, if you have a bike pump, use a tyre valve which is called a schrader.

If you have a air compressor(excl 12v ones) you'll want a quick connect fitting. Don't ask search.

I suggest looking at some other pneumatics on the site for a better design, it doesn't look very comfortable, is an odd shape and it'd be hard to trigger.

Maybe something like this:
http://www.spudfiles.com/forums/viewtop ... tml#123690

Inlines are very easy to fire, are fairly accurate and comfortable.

The cap you'll need is a 2" PVC end cap, make sure ALL the fittings are pressure rated.

If you don't know how to identify pressure rated fittings, I suggest you do some more research. But they should have NSF-PW on them.
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Unread postAuthor: Zen/// » Thu Nov 29, 2007 7:50 pm

The Ball valve isn't nessasary you can use another "cap of some sort"
"Fill valve of some sort"= Schrader valve (tire valve)

REMEMBER TO USE PRESSURE RATED PARTS!!! :!:

Edit: Awww MR.C beat me :evil:

BTW great idea Crowely
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Last edited by Zen/// on Thu Nov 29, 2007 7:51 pm, edited 1 time in total.
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Unread postAuthor: octane89 » Thu Nov 29, 2007 7:51 pm

Use a schrader valve to fill, and if I understand correctly all you need for a cap is a standard. pvc cap (nsf-pw of course).
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Unread postAuthor: paaiyan » Thu Nov 29, 2007 7:55 pm

1. Figure out another way to make that stock. It's flimsy and that ball valve is worthless there.

2. Find a way to connect the barrel to the chamber for support, otherwise the torque from the shot might just blow out an elbow joint, we've seen it before.

3. You probably don't want a cleanout cap on the end there, get a regular cap for it.

4. Schrader valve's probably your best bet for filling the chamber.

EDIT: I must type slow or something, none of those other posts were there when I started.
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Unread postAuthor: jackssmirkingrevenge » Thu Nov 29, 2007 11:04 pm

Try and put the sprinkler valve horizontal behind the barrel to avoid the dead space in the elbow.
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Unread postAuthor: BrodMan » Fri Nov 30, 2007 7:04 am

jackssmirkingrevenge wrote:Try and put the sprinkler valve horizontal behind the barrel to avoid the dead space in the elbow.


thats what i was going to do, but i screwed up, and i thought maube it'll work this way better, but it dont. i will attach the sprinkler to the barrel, then a short piece, the the elbow. or maybe a T thhen start the stock from there, and go arond, the down. i will try to redraw it soon.
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