valveless pellet gun

[jackssmirkingrevenge]

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 no penetration but that's 1mm steel and I'm "only" using 450 psi:

[youtube][/youtube]

No idea how fast they were going though, BOTH my friggin' chronys' batteries have run down!

[POLAND_SPUD]

something tells me that a QC gun is coming soon

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

[jackssmirkingrevenge]

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

[youtube][/youtube]

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

[youtube][/youtube]

[POLAND_SPUD]

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

POLAND_SPUD consulting Inc. - providing expertise in spudgunning since 2007



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

[jackssmirkingrevenge]

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

*cough* further discussion in the showcase thread *cough*

[frozenveinz]

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.

[bobgengeskahn]

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!

[Crna Legija]

lol JSM its JSR and dont kick up dead topics

[jackssmirkingrevenge]

... but now that it's up, this is a better idea for a retainer/trigger than the original project.

[POLAND_SPUD]

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?

[jackssmirkingrevenge]

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

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



... 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".

[pneumaticcannons]

Omg jsr thats intense... i say go for the 0.22 maybe even rifling?
hey! what happened to your hybrid pen gun

[bobgengeskahn]

Oh, my mistake, its obviously been a while since I've been around these parts 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

[jackssmirkingrevenge]

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

In the works, but I'm distracted by work and making knives pretty at the moment

[jakethebeast]

KNIVES FTW