I think I might have to jump on board this as well..
In regards to the rules, if we've been working on something previous to the competition and it's unfinished, are we able to use part of it for this project? e.g. air tank with valve.

Hey matey, In regards to the butane cans, K-mart has a pack of 3 cans for around $5, all found in the camping/outdoor section ;) Hammer valves aren't exactly sold as product but are pretty easy to make with some basic hand tools. I've seen that video before and the guy has a few other videos buildin...

Hell yes! Looking good so far, I can't wait to see the progress on this, something that I've always had on the back burners myself.

Dude, this is some seriously beautiful looking work, good stuff mate
When you say "EM" valve, what type of valve do you mean?
Can't wait to see the tank on her and ready for shooting, keep it up matey, and merry christmas!

That was my first assumption, thanks for clarifying that Jimmy.
Hopefully I'll come up with something with my lack of heavy tools, although it's a helluva lot of pressure in those canisters..

On the topic of Co2 and pressures, I've been reading through a lot of patents on Google for Co2 pistols and it sparked the thoughts of if I was to build my own valve, it would need to withstand the pressure of unregged gas. When the canister is pierced, it's only a tiny hole so this would reduce the...

Just as a quick update, the pump is being constructed as I speak. I'm about to start getting the check valve sorted, after that it should be smooth sailing. Using copper for the first time is sparking ideas for FA mechanisms and Girandonni inspired rifles.. Looks like I'll be getting more tubing at ...

Hopefully so, after seeing a few of the tutes on here for pressure pumps, it seems pretty achievable. Especially due to the fact that standard plumping fittings are used for the bottom end of the pumps. Thanks for the advice, I actually have a repurposed 12g canister as well which will take the plac...

Thanks for the kind words JSR, means a lot coming from the infamous "epoxy bandit" :twisted: Exactly that, quite easy to actuate which I'm pretty impressed with for what it is. Currently it's running at ~150psi, could easily push it to 250 - 300 I'd say. Unfortunately I'm restricted by the pump I'm ...

Hey crew, been lurking the site for a fair while now but haven't posted any threads yet so I figured it was time to change that. I've been tinkering with pneumatics for a while now and have had a fair amount of success with making some fun little plinkers, unfortunately, my commercially bought 1/4" ...

Damn man, that's a mad idea for your pilot valve.
I really need to get some more tools myself, or just find a new job haha.

I have access to a decent drill press at work, apart from that all hand tools. The main plate is 10mm aluminum, it's a bit discolored as it was basically scrap metal left outside. I have some nice 3/8 thick white nylon to finish the grip, other parts have arrived so lots more to do yet. The barrel ...

Nice work farcticox, looks like some clean work dude.
What tools did you use to make that whole mechanism?

I've tried to get a setup like this working before but never had any success unfortunately. Thinking about it, and anyone please feel free to correct/ comment, you could connect a fill valve to 'A' port on the smaller "pilot" QEV, the triggering valve (whatever it may be) connects to 'P' port on "pi...

I've tried to get this working with some parts lying around but had no success unfortunately. I'm thinking both air ports will need to be connected to the same air source and 'R' port from the 'piloting' QEV will connect to the 'P' port of the 'firing' QEV. Although, thinking about it, and anyone pl...