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Built a miniature cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: jackssmirkingrevenge » Tue Jul 27, 2010 1:17 pm

I'm made a similar launcher to the one in the original thread, only beefed up for HPA and with a rubber seal to enable airsoft BBs to be fired.

It doesn't seal perfectly, clearly an asymmetric locking of the projectile is not ideal - still managed to make some BB pancakes though :D no penetration but that's 1mm steel and I'm "only" using 450 psi:

[youtube]http://www.youtube.com/watch?v=M99BKkD27d0[/youtube]

No idea how fast they were going though, BOTH my friggin' chronys' batteries have run down!
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yes, I know it's bent, just a proof of concept :P
CIMG0321.JPG
BB pancake :D
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Unread postAuthor: POLAND_SPUD » Tue Jul 27, 2010 2:03 pm

something tells me that a QC gun is coming soon :D

Is it a single shot gun or do you plan to turn it into a semiauto/fullauto gun ? actually that isn't such a bad idea... you just need a similar locking mechanism behind the BB... so that it will block the nest round when the release mechanism opens
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Unread postAuthor: jackssmirkingrevenge » Tue Jul 27, 2010 2:43 pm

POLAND_SPUD wrote:Is it a single shot gun or do you plan to turn it into a semiauto/fullauto gun?


OMFG I can't believe I didn't think of that!!!!!!

I poured a bunch of BBs into the chamber, set the detent to barely let a BB pass and instant airsoft cloud BBMG, not BRAAAAP! but DAKKA DAKKA DAKKA and instant feed every time!!!!!

Apologies for the crap lighting, it's dark now but I think you can see why I'm grinning like a fuçking idiot right now :D :D :D

[youtube]http://www.youtube.com/watch?v=Ct69Eg0BmwY[/youtube]

And here it is in real time, note the ridiculous amounts of shattered BB spilling out of the tin :D

[youtube]http://www.youtube.com/watch?v=otpqK8GybcQ[/youtube]
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Unread postAuthor: POLAND_SPUD » Tue Jul 27, 2010 2:56 pm

OMFG I can't believe I didn't think of that!!!!!!

POLAND_SPUD consulting Inc. - providing expertise in spudgunning since 2007
:D


well I suggested this when I noticed that mine worked so well...
back then I was literally
grinning like a fuçking idiot

uhmm I mean before I got totally frustrated after spending so many hours tweaking the design to achieve reliability... with no success

but yours seems pretty reliable... have you tried adjusting the flow and/or the detent to bring ROF down ?? I think it is possible... well at least it worked pretty well on mine
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Last edited by POLAND_SPUD on Tue Jul 27, 2010 3:37 pm, edited 1 time in total.
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Unread postAuthor: jackssmirkingrevenge » Tue Jul 27, 2010 3:17 pm

Yes yes, thanks for pointing out the bleeding obvious which seemingly escaped me ;)

*cough* further discussion in the showcase thread *cough*
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Unread postAuthor: frozenveinz » Thu Aug 18, 2011 10:26 pm

PotatoFlinger, I highly doubt that a lead projectile would scrape a steel barrel.
Even look at regular pellet guns, they do the same thing, inflate the skirt to make a perfect seal.
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Unread postAuthor: bobgengeskahn » Wed Oct 19, 2011 1:09 pm

Nice work JSM!! I have been thinking about something like this for about 6 months to put in a semi auto airsoft sniper rifle, and lo and behold I come here for some inew inspiration and I see this! Absolutely awesome work!
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Unread postAuthor: Crna Legija » Thu Oct 20, 2011 2:16 am

lol JSM its JSR and dont kick up dead topics
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Unread postAuthor: jackssmirkingrevenge » Thu Oct 20, 2011 2:28 am

... but now that it's up, this is a better idea for a retainer/trigger than the original project.
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Unread postAuthor: POLAND_SPUD » Thu Oct 20, 2011 2:52 am

but now that it's up, this is a better idea for a retainer/trigger than the original project
hmm Y U no build a proper semiauto with the same mechanism?
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Unread postAuthor: jackssmirkingrevenge » Thu Oct 20, 2011 3:24 am

POLAND_SPUD wrote:Y U no build a proper semiauto with the same mechanism?


Working on it, first I want to make the ultimate pengun :D

Image

... though for a 3/8" ball bearing, the diameter would have to be at least 16mm, so not really convincing as a "pen"... so perhaps in 0.22".
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Unread postAuthor: pneumaticcannons » Thu Oct 20, 2011 7:38 am

Omg jsr thats intense... i say go for the 0.22 maybe even rifling?
hey! what happened to your hybrid pen gun :o
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Unread postAuthor: bobgengeskahn » Thu Oct 20, 2011 1:46 pm

Oh, my mistake, its obviously been a while since I've been around these parts :P Sorry for the necro post, I figured it was still on the first page, but now I see I was about 2 months late to the party :(
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Unread postAuthor: jackssmirkingrevenge » Fri Oct 21, 2011 1:27 am

pneumaticcannons wrote:Omg jsr thats intense... i say go for the 0.22 maybe even rifling?


Rifling seems a bit pointless on a device than cannot really be aimed, besides diablo shaped pellets are more than stable fired from a smoothbore barrel.

hey! what happened to your hybrid pen gun :o


In the works, but I'm distracted by work and making knives pretty at the moment ;)
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Unread postAuthor: jakethebeast » Fri Oct 21, 2011 1:40 am

KNIVES FTW :D
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