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Post by toughzilla on Jul 23, 2005 18:26:40 GMT -5
Hey guys,
I've had my cannon built for a few years now.. Tonight I installed a bbq igniter and am using ether. It's just a basic 2 inch barrel with a 2-4inch adapter with a bbq igniter in the bottom one of the shocker ones...
I used to use airfreshener but tonight that didn't work.. So I switched to ether.. which works.. but it has trouble fire multiple rounds within a short period of time. I think it's a gas to air ratio. How can I air out my chamber? Also is there any easy way to install a valve so I can put ether in it easier?
Thanks
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Post by ghippleh on Jul 23, 2005 18:55:16 GMT -5
I have the exact same set up as you except my barrel is 1 and 1/2 inches. Between every launch you must upon the back of the spud gun (I'm assuming you built in a 'hatch' in the back). If this dosn't work you can install a battery powered fan to mix the ether with the air. Personally I wouldn't use ether. I use AquaNet which is a hairspray with few additives and burns rather cleanly without chemically 'melting' the PVC. If you don't understand what I meant about the 'hatch' in the back then check out some pictures of my gun here (its also a tutorial) www.gadget-tech.net/guides/mechanical/potato-gun.html |
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Post by toughzilla on Jul 23, 2005 19:11:34 GMT -5
yeh I have a hatch.... it's just a ABS adapter with a screw in lid.
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Post by toughzilla on Jul 23, 2005 19:14:35 GMT -5
mine is a bit different though.. it doesn't make a T it's all straight.. so if I install a fan I won't be able to unscrew the lid to put the ether in... so I'd need some sort of valve.
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Post by ghippleh on Jul 23, 2005 19:32:00 GMT -5
you can buy ball valves but I doubt at 4 inches. you could reduce the back to maybe a 1/2 inch or an inch and just a get a metal ball valve.
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Post by saladtossser on Jul 23, 2005 20:04:15 GMT -5
airwick wooks great for me, and cheap too.
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Post by toughzilla on Jul 23, 2005 20:48:11 GMT -5
how would I hook up my ether to the ball vavle.. also I've never heard of airwick.
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Post by ghippleh on Jul 23, 2005 21:10:49 GMT -5
what type of container does your ether come in?
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Post by toughzilla on Jul 23, 2005 21:13:55 GMT -5
it's a aerosol canister... one that will fit in a tractor.. but it has spray nozzle on it and whatnot..
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Post by ghippleh on Jul 23, 2005 21:22:41 GMT -5
its dangerous but you could drill a small hole into the combustion chamber and instead of using ether use wd-40 with the long straw applicator. I have seen other people do this but i have never personally done it. also, i'm not sure how wd-40 ranks as far as a fuel. your probably never going to get around the fact that your going to have to air out the chamber between each use. all the fuels need oxygen unless you decide to switch to a pneumatic gun. if you want 'easy' I would just make a pneumatic gun. all you have to do to your current set up is install a high pressure valve (can be purchased from automotive store) and just use pressurized air. This really doesn't answer your question but it might be an alternative.
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Post by toughzilla on Jul 24, 2005 5:55:34 GMT -5
but then I'd need an air canister to fuel it correct?
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Post by blowemupspudguy on Jul 24, 2005 20:02:15 GMT -5
no, just a compressor or a bike pump. with abs parts i wouldn't go over 40 psi myself though
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Post by ghippleh on Jul 24, 2005 22:20:43 GMT -5
oh nvm. i didn't note that you were using ABS. stay away from pressurizing ABS because its not pressure rated. pneumatic guns need a much higher pressure than combustion guns in order to shoot the same distance.
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Post by LordGarbash on Jul 25, 2005 23:25:44 GMT -5
You may want to try blowing into the chamber in between shots to help the air mixture. Don't use hair spray, it gums up the inside of your chamber something awful. WD 40 won't ignite very well, the propellant is now CO2 where it used to be explosive stuff. You could install a chamber fan at the original opening for fuel and add a 3/4" nipple and a 3/4" ball valve that you could spray fuel in from if you wanted. Of course you could make the nipple and ball valve bigger, but those get expensive.
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Post by darthtator on Jul 27, 2005 13:56:58 GMT -5
just put the fan in the rear end of the chamber, not the cap. Drill some screws from the outside of the chamber through the walls of the chamber and into the fan a little. That will hold it in place. Then there should be no reason you couldn't unscrew the end cap and spray fuel in. On mine I just spray it into the fan, screw the cap on and turn the fan on for about 10 seconds or so. If you want a way to exaust the fumes after every shot then just put in a schrader valve ( a tire stem) and after you shoot unscrew the cap and push your compressor nozzel onto the valve. if you don't have a comperssor that is readily available then hook up a bike pump to the valve an start pumping.
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