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Posted: Tue Jul 29, 2008 1:15 pm
by Carlman
could a very quick and trusty paint diagram be undertaken?

is a spring necessary because i plan to have a stick mag like in the video slightly off vertical or a hopper

Posted: Tue Jul 29, 2008 1:19 pm
by potatoflinger
It is possible that the feeding mechanism is just a tee with the exhaust port of the QEV on one side, the barrel opposite the QEV, and the magazine perpendicular to the barrel and QEV. (I'm not sure how well I explained that)
That was how I got my first bbmg to work, if you just let a little bit of air go through, it will fire a short burst, but if you let a constant stream of air through, it will be fully automatic.

Posted: Tue Jul 29, 2008 1:29 pm
by Carlman
yes but like the gun in this video i wish for semi auto single shot

Posted: Tue Jul 29, 2008 1:30 pm
by potatoflinger
That's what you would get with a QEV, since it is only a short burst of air.

Posted: Tue Jul 29, 2008 1:31 pm
by jackssmirkingrevenge
I'd love to oblige with a drawing but I'm on an old laptop at the moment and after a busy day at work I don't think I could stand the frustration ;p

Posted: Tue Jul 29, 2008 1:37 pm
by Carlman
no probs jrs im pretty sure i get it, just low on funds at the moment so cant really afford to bugger it up just for learning purposes :D

Posted: Tue Jul 29, 2008 2:07 pm
by POLAND_SPUD
but if he used a bolt he could add a much better magazine than a ~40 cm long vertical tube... so IMO the guy uses an o-ring setup

EDIT
@carlman yes



EDIT no 2
9/32"
WTF is this? how can you use imperial units :shock: :D

LOL it's 21st century.... wake up !!

excuse me I am looking for 14/345 dm of 17/65 cm pipe..... where can I find it ?

Posted: Tue Jul 29, 2008 2:09 pm
by Carlman
true... :D

but i cannot find a compression T over here in 1/4" grr

Posted: Tue Jul 29, 2008 2:20 pm
by POLAND_SPUD
a compression fitting is not the best idea here becasue most likely it won't let BBs through... (its ID is lower than the ID of the tube)

Posted: Tue Jul 29, 2008 2:24 pm
by Carlman
its a 6mm compression T, and the tube is 6mm... im only using the structure then epoxy it.

i say 9/32" instead of what ever the metric is beacuse that is how small tube is sold in aus

EDIT: 6mm fittings can take 6mm brass tube through it

Posted: Tue Jul 29, 2008 2:33 pm
by POLAND_SPUD
i say 9/32" instead of what ever the metric is beacuse that is how small tube is sold in aus
yeah I know it but still it has to be uncomfortable to use fractions.. so I am not criticizing you I just think that imperial sucks

Posted: Tue Jul 29, 2008 5:10 pm
by Antonio
Carlman wrote:yes but like the gun in this video i wish for semi auto single shot
Me too:) I wonder what the efficiency is as he is using an air compressor. What I dont like though is that the trigger pull (speed) varies the opening time of the valve. This makes it kinda inconsistent. But cool concept anyways.

Posted: Thu Oct 16, 2008 12:49 am
by jackssmirkingrevenge
Carlman wrote:could a very quick and trusty paint diagram be undertaken?
A little late but now that I made a small animation might as well stick it here ;)

Image

Posted: Thu Oct 16, 2008 4:54 am
by VH_man
Its that simple?

Why havent any of us done this before?

And that Airsoft gun is freakin sweet. Looks like alot of power too...... Although his Chamber is HUGE

Posted: Thu Oct 16, 2008 5:22 am
by jackssmirkingrevenge
VH_man wrote:Its that simple?
Yep.
Why havent any of us done this before?
Personally, I always wanted to use airgun pellets as ammunition, with this design you're limited to spherical ammunition only and this is why I never went with it.
Looks like alot of power too...
Not really, but if used at normal compressor pressures instead of 40 psi it would certainly be more impressive.