hectmarr wrote:You have to make many weapons, because this field is long and short life
It's possible to make a functioning semi-automatic with off-the-shelf components (quick exhaust valve + 3 way valve), but it won't be compact in the sense of realistically fitting within the envelope of a "real" rifle without some custom components. You also didn't mention what caliber and performance you were after.By the looks of it there is no viable option to purchase a valve of eBay and a bunch of other stuff and “hook” everything up together.
hectmarr wrote:You have to make many weapons, because this field is long and short life
Get a 88g co2 cartridge, they hold 1000psi.LordFarquaad wrote:I plan on shooting Gel-Balls, up to a distance of 15m to would be great. In regards to the QEV how would I attach a CO2 cartridge to one, in regards to fittings and etc. I fear that a 12g cartridge would run out after a couple shots.
Thank you all!Air2theBrain wrote:
Get a 88g co2 cartridge, they hold 1000psi.
Just screws right in.
Dunno which state your from mate but Big W doesn't sell jack all in WA, Big W isn't as dominant as K-mart and Target.Zeus wrote:Gel balls, you're gonna need to use fairly low pressure, they split very easily. I'd use propane instead, fairly steady pressure, cheap as (Big W has them for $10, and a 450g canister will last ages.
Also you'll want a very smooth barrel, Bunnings have 8mm and 10mm ID aluminium tube that has a fantastic internal finish
Wow thanks mate! Learnt a lot so far! In regards to the valves that have a pin you push to expel a gas arn’t they called hammer valves? If that’s correct why can’t I find any on eBay in Australia. This is a little side project for my kid brother who likes to mess around with CO2 and likes bolt action designs.Air2theBrain wrote:Doesn't matter what size cartridge amigo...it has co2 inside which needs to be expelled...just a slight tap with a nail..you'll get a little woosh and its all out.
The 12g cartridge im not sure about, just order yourself a 88g co2 cartridge from ebay, they have threaded ends.
Drive a nail into a piece of timber first..then hold the timber one hand, hammer with the other..and pop.
I highly doubt it....even when i look at those pieces i still can't figure out how i would get them to work sadly..LordFarquaad wrote:Yeah tricky little things arn’t they. As I’m new to all this is it possible to buy one of these pre-made?
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Thanks mate - helped me a tonne. I’ll be sure to head off to Kmart soon.Kensingt0n wrote: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 building pretty similar stuff, if you have a look through, it should show more detail on his valves.
Basically, it's 15mm x 15mm male to male coupling with a hole drilled in the side. The bolts that are cut off are used as stem guides and somewhere for the spring to be compressed against. At rest with pressure in the tank, the rubber seal will press against the end of the coupling, sealing off the transfer port (side hole) from the air. When the valve stem is struck, it slides away from the end of the coupling allowing a rush of air from the tank to flow past the rubber seal and out through the transfer port. The spring and air pressure push the valve stem and seal back towards it's rest position and the valve re-seals.
It's quite funny really, i've just finished up a project based on the exact video posted
I'll get some pics up when I get the chance. Hope this helped out mate!
