1st Pen cannon/gun

Miniature guns are novelty custom, unique, and sometime downright crude! Common construction materials often include pill bottles or pens. Show us your work!
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Benjg555
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Tue Oct 19, 2010 3:40 pm

Hey you guys this is going to be my Pen cannon when it's built :) . So I have 3 different barrel sizes 2 are long that i got from school and the largest one is from my bb gun. For the shredder valve I have a tire valve. That I will shave the rubber off so it's just the metal. The piston I'm still not sure on :/ to get it tonthe right size and to last because it won't be servicable. Another problem is I can only fill it up to no more than 200 psi.
Alright enough of my dum blabiling here are some picture od the barrels. And the pen I would use if I am to use the 2 smaller barrels.
Oh and i'd use epoxy to hold the valve and epoxy at the end. Supported?
Image
Image
Image
That's the wholes the pen has I'd cover them with jb weld
Image
Bb gun barrel

Thanks :D
Last edited by Benjg555 on Tue Oct 19, 2010 7:12 pm, edited 2 times in total.
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maverik94
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Tue Oct 19, 2010 5:00 pm

If mod can fix link that'd be great
click "edit" on the upper right hand corner of your post and add [/img] to the end of that link.
Anyway, I think it it's the size of a pen, it's not a cannon hahaha :)
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Benjg555
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Tue Oct 19, 2010 5:19 pm

Haha alright pen mini cannon/gun
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Gun Freak
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Tue Oct 19, 2010 7:03 pm

So you are trying to build a pengun. I suggest research the ones posted in the mini showcase section and get better idea how they work, because I think you're missing something. Your pipe looks good for a chamber but not a barrel. It needs to be much smaller, unless I misjudged the size of the pipe.
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Benjg555
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Tue Oct 19, 2010 7:08 pm

I'm missing something :o. I'm pretty sure the 2nd smallest one will work it fits a pen ink tube perfectly :)
Oh and yes thee bb gun barrel would be for the casing or chamber haha
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Gun Freak
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Tue Oct 19, 2010 7:13 pm

I beg your pardon, one does look like it could work but wouldn't leave much chamber volume. Chances are you'll end up making a second one that is better so just do a bit of research to start off.
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Benjg555
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Tue Oct 19, 2010 7:17 pm

Hmm alright 8) Ill upload another pic in a few mins
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Gun Freak
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Tue Oct 19, 2010 7:24 pm

Benjg555 wrote:Hmm alright 8) Ill upload another pic in a few mins
Cool, can you put a size comparison object like a bb or something so I can tell how big it is, or at least measure it roughly.
jrrdw wrote:Good question...
Agreed.
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Benjg555
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Tue Oct 19, 2010 8:03 pm

Gun Freak wrote:
Benjg555 wrote:Hmm alright 8) Ill upload another pic in a few mins
Cool, can you put a size comparison object like a bb or something so I can tell how big it is, or at least measure it roughly.
jrrdw wrote:Good question...
Agreed.
Double agreed.

Alright so all those really long pipes are going to be cut.
This is the option using a pen casing
It has the smallest barrel
Image

Bb barrel as the casing and the pen cap covering shredder valve. Bigger barrel
Image

Sizes of the barrel and bb barrel which is used as a casing
Image

Hope this helps[/url]
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reedfe
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Tue Oct 19, 2010 8:58 pm

Benjg555 wrote: Image

Bb barrel as the casing and the pen cap covering shredder valve. Bigger barrel
Image
looks awkwardly long and silly.
Benjg555 wrote:my mom got hers wet
sorry i had to. nothing further
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Benjg555
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Tue Oct 19, 2010 9:07 pm

Ya thats why ima cut it :p

Haha ya I understand I really did set my self up. For that one :swears:
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Tue Oct 19, 2010 9:13 pm

Decided to clean this up before it gets out of hand.
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Gun Freak
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Wed Oct 20, 2010 4:21 pm

Ok use the smallest pipe you have for the barrel, cut it to length and keep the bb gun barrel as long as possible to use as the chamber.
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Benjg555
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Wed Oct 20, 2010 4:39 pm

Alright man thanks :) ya definetly even I it means drilling out the shredder valve and whatever else is in it :). I'm going to start It as soon as possible. Currently making a lock box. So probably Monday, know to make the piston I'm thinking the 2nd largest with bb to hit and rubber something for a sealer. At the end were te projectile exits it can be just epoxy right?
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MrCrowley
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Wed Oct 20, 2010 4:48 pm

For the shredder valve I have a tire valve
By the way, a schrader valve is a tire valve.
A shredder valve is a custom built piston valve by sgort87, a member here.
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