mini pill bottle combustion

Miniature guns are novelty custom, unique, and sometime downright crude! Common construction materials often include pill bottles or pens. Show us your work!
skishoot
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Thu Jun 17, 2010 4:15 pm

Hello this is my first mini (i have built 2 nerf guns) and I would really like feedback on it. I am hopefully going to make another version but I want my next version to be the best it can be. I used a small pill bottle for the chamber and a barrel that fits airsoft bbs extremely loosely.I took the igniter from a lighter and use ax in it. I was wondering if just having bare wires in the chamber for ignition is not the best, should I replace it with nails or screws? also does anyone know if there is a way that I can get a clip and possibly use it for airsoft battles if i had a hop up? I will probably get a tank and compress it with air so I just have to press a blowgun handle to prime it then pull the trigger. Here are some pics:

EDIT: any suggestions please share!!!!
Attachments
Photo 32.jpg
Photo 30.jpg
Photo 29.jpg
Photo 28.jpg
updated with airsoft pistol barrel
updated with airsoft pistol barrel
Last edited by skishoot on Fri Jun 18, 2010 2:29 pm, edited 1 time in total.
metalmeltr
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Thu Jun 17, 2010 6:41 pm

I would recomend using a piece of 3/4 pvc or copper to hold the compressed air and use 5/16 metal fuel line as the barrel a blowgun will work for the valve
skishoot
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Thu Jun 17, 2010 6:59 pm

what is 5/16 barrel good for?
thanks
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Gun Freak
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Thu Jun 17, 2010 7:14 pm

5/16 line is a good fit for airsoft bb's.
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skishoot
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Thu Jun 17, 2010 7:23 pm

ok thanks and by the way does having screws for the ignition create a bigger spark? and where can I buy the 5/16 fuel line?
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Gun Freak
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Thu Jun 17, 2010 7:33 pm

No I don't think using screws makes a difference but it just makes the spark stay in one place because the screws are stronger than a plain wire.
You can get the line, I think it's brake line... at auto stores.
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skishoot
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Thu Jun 17, 2010 7:42 pm

thanks, do you have any idea how much it will cost?
sorry i'm asking so many questions, I'm a newb.
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Gun Freak
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Thu Jun 17, 2010 7:46 pm

No problem, it should only be a few bucks for a few feet, far too long for this gun but you can use it for multiple guns.
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skishoot
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Thu Jun 17, 2010 7:50 pm

ok thanks alot I'm planning on building a vortex cap soon too so that will work out.
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Gun Freak
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Thu Jun 17, 2010 8:02 pm

Cool, BBMG's are cool too and not that hard to make, just do a lot of research in the Wiki and in the showcase.
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skishoot
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Fri Jun 18, 2010 1:38 pm

I found brass 6.1mm ID at Mcmaster will that wok as barrel material?
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deathbyDWV
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Fri Jun 18, 2010 2:20 pm

That'll work fine. Good job on the mini... :)
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skishoot
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Fri Jun 18, 2010 2:26 pm

thanks, I replaced the barrel with an airsoft pistol barrel that is attached to it's hop up. I will add a pic at the top.
skishoot
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Sun Jun 20, 2010 2:37 pm

will 1/4 in copper pipe work as a barrel? sorry i heard somewhere it would but I am not sure. please help and suggest improvements on the cannon.
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theBOOM
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Sun Jun 20, 2010 4:57 pm

Metered fueling (syringe would be easiest), chamber fan if possible, longer barrel.
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