pengun deluxe

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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jackssmirkingrevenge
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Wed Jul 21, 2010 11:47 am

My original pen gun was built in a hurry for a spudfiles contest and wasn't very refined, I figured three years on it was time I made one that could actually pass for a pen :)

Since the focus is on aesthetics, dimensions are rather limited - for example the 3mm barrel is only 70mm long - but the 8mm I/D chamber tube gives a high C:B ratio. Internally it's similar to my pengun v2 with a solid rubber piston cut with a sharpened tube from 1/4" sheet. I also added a small neodymium magnet to the breech in order to stop projectiles from rolling out.

Performance isn't spectacular but nothing to scoff at either, here it is in action at 400 psi against a energy drink can full of water, using a 3mm steel BB - punched straight through.

[youtube][/youtube]

All that's left is to add a rod to the cap so it can be used as a trigger, meaning once it's loaded and pumped it can be carried alone and used without ancillary items. I would also like to find a suitable cap to disguise the schrader, maybe a turned down tyre dust cap.

edit: added the cap as a firing mechanism :)

[youtube][/youtube]

How it works:

Image

Some photos:
Attachments
comparison with an actual pen
comparison with an actual pen
open (firing) configuration
open (firing) configuration
closed (carry) configuration
closed (carry) configuration
Last edited by jackssmirkingrevenge on Sat Feb 26, 2011 3:41 am, edited 2 times in total.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Gun Freak
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Wed Jul 21, 2010 11:49 am

Nice, you need a front to disguise the barrel, but good performance. :)
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jackssmirkingrevenge
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Wed Jul 21, 2010 11:50 am

Once they can see the barrel it's already too late ;P
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Mr.Sandman
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Wed Jul 21, 2010 11:53 am

Dear lord jack, you just love 1up'ing people :lol: I need to find a nice brass colored cap for my pengun. I do believe I have started the shiny pengun fad. Great work as always, hope to see another slowmo vid soon.
Yeah, it's that important.
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jackssmirkingrevenge
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Wed Jul 21, 2010 11:55 am

Mr.Sandman wrote:Dear lord jack, you just love 1up'ing people :lol:
Lol I know that's what it looks like, but actually this has been in the pipeline for a few weeks now, I was just waiting for the pen I ordered to arrive so I could cannibalise it for parts ;)
hectmarr wrote:You have to make many weapons, because this field is long and short life
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clemsonguy1125
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Wed Jul 21, 2010 11:55 am

Looks great, whats the piston, and is it servicable, im hesitant to make a non servicable mini after the fail of my last piston.
That is all.
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jackssmirkingrevenge
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Wed Jul 21, 2010 11:56 am

clemsonguy1125 wrote:Looks great, whats the piston, and is it servicable, im hesitant to make a non servicable mini after the fail of my last piston.
*cough*
jackssmirkingrevenge wrote:Internally it's similar to my pengun v2 with a solid rubber piston cut with a sharpened tube from 1/4" sheet.
That sort of piston should last the life of the launcher as long as it's well supported.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Mr.Sandman
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Wed Jul 21, 2010 12:01 pm

jackssmirkingrevenge wrote:
Mr.Sandman wrote:Dear lord jack, you just love 1up'ing people :lol:
Lol I know that's what it looks like, but actually this has been in the pipeline for a few weeks now, I was just waiting for the pen I ordered to arrive so I could cannibalise it for parts ;)
I see how it is, the whole "I thought of this before you routine" :roll: Kidding of course, what pen was it that was used for this build, the cap would look perfect spray painted gold colored and put on my pengun.
Yeah, it's that important.
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clemsonguy1125
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Wed Jul 21, 2010 12:03 pm

Thanks, my bad, I read through that a little to quickly
That is all.
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jackssmirkingrevenge
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Wed Jul 21, 2010 12:06 pm

Mr.Sandman wrote:what pen was it that was used for this build, the cap would look perfect spray painted gold colored and put on my pengun.
This one.

Originally I wanted to fit the coax in the pen body, but I was a little too heavy handed while hacking it up :roll:

Maybe I should find a clicky-top, incorporated trigger...
hectmarr wrote:You have to make many weapons, because this field is long and short life
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jakethebeast
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Wed Jul 21, 2010 12:34 pm

hey thats beautifull, looks much better than the original one :)
damn i need to make one of these penguns
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jackssmirkingrevenge
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Wed Jul 21, 2010 1:20 pm

Yep, this one makes the original look pretty shabby. Already working on a new one :D
hectmarr wrote:You have to make many weapons, because this field is long and short life
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clemsonguy1125
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Wed Jul 21, 2010 5:01 pm

In the second picture is that solid epoxy you used to hold the barrel in the center
That is all.
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lozz08
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Wed Jul 21, 2010 6:12 pm

jackssmirkingrevenge wrote:
Mr.Sandman wrote:Dear lord jack, you just love 1up'ing people :lol:
Lol I know that's what it looks like, but actually this has been in the pipeline for a few weeks now, I was just waiting for the pen I ordered to arrive so I could cannibalise it for parts ;)


jajaja, we all know who the star of this forum is... in australia we have a thing called tall poppy syndrome for people like you...
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jackssmirkingrevenge
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Wed Jul 21, 2010 10:25 pm

clemsonguy1125 wrote:In the second picture is that solid epoxy you used to hold the barrel in the center
That's silicone tubing, it keeps the cap in place.
in Australia we have a thing called tall poppy syndrome for people like you...
What exactly are "people like me"? :P
hectmarr wrote:You have to make many weapons, because this field is long and short life
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