Full/Semi auto 27mm blowback bolt cannon. UPDATED new paint+
Posted: Wed Apr 20, 2011 7:28 pm
by jhalek90
Cannon Specs:
27mm
semi/full auto (select fire, kinda.)
Blow back breech
7 round detachable spring loaded magazine
Main Valve: 1'' sprinkler valve, piloted by a pop off valve.
Photo:
How the bolt works:
How i did the detent and hopup:
VIDEO:
[youtube][/youtube]
NEW PAINT+trigger+magazine changes:
[youtube][/youtube]
Any Questions?
Posted: Wed Apr 20, 2011 7:33 pm
by Gun Freak
LOL bipod falls off...
That is really cool. It could use a redesign to make it prettier but as long as it functions! Good job.
Posted: Wed Apr 20, 2011 7:36 pm
by warhead052
Nice job. How did you get it to blow back?
Posted: Wed Apr 20, 2011 7:42 pm
by jhalek90
yeah i forgot the bipod screw. lol.
Blow back is now explained via a picture in the original post.
Posted: Wed Apr 20, 2011 7:59 pm
by warhead052
Ok. Thanks! Yet again nice job on the gun. I would love to have one...
Posted: Wed Apr 20, 2011 8:05 pm
by JDP12
Wow.. very impressive! INcredibly simple design.. followin the KISS principle I like it! Nice job
Posted: Wed Apr 20, 2011 8:15 pm
by ramses
Nice.
You know... If you used a 3 way valve for the trigger, you would have true semi auto.
And an air cylinder would make it cycle (better?). And if you hooked it up to a fridge compressor...
[/polandspud joke]
What are you using for your magazine spring? is the magazine sealed from atmosphere?
Posted: Wed Apr 20, 2011 8:16 pm
by jhalek90
ty. in the spirit of KISS during prototyping, the breech was held together with tape. lol
It exploded several times. very fun. After i got it working, i glued everything down. No more explosions.
Posted: Wed Apr 20, 2011 11:36 pm
by jackssmirkingrevenge
lol @ the detent, love it very nice overall, needs some tweaking but kudos on ghettting see what I did there it to work, brilliant!
ramses wrote:What are you using for your magazine spring?
Looks like a rubber band
Posted: Wed Apr 20, 2011 11:48 pm
by POLAND_SPUD
Nice
If you used a 3 way valve for the trigger, you would have true semi auto.
And an air cylinder would make it cycle better. And if you hooked it up to a fridge compressor...
Posted: Thu Apr 21, 2011 12:03 am
by jackssmirkingrevenge
POLAND_SPUD wrote:Nice
Posted: Thu Apr 21, 2011 2:39 am
by ThornsofTime
@JSR Hey... its a valid button... But you seem to have forgotten to "program" a standard "epoxy advice" button...
Posted: Thu Apr 21, 2011 2:51 am
by jackssmirkingrevenge
ThornsofTime wrote:@JSR Hey... its a valid button... But you seem to have forgotten to "program" a standard "epoxy advice" button...
Fine, in the interest of balance:
Posted: Thu Apr 21, 2011 7:33 am
by POLAND_SPUD
you forgot about random innuendo and APFSDS rounds are so fuc#### awesome (let me post another pic of them) buttons
anyway you're just jealous...
you could have realized that 3 way valves are the way to go...
and now you're like 'uhhhh......... 3 way valves $#$#$'
...retards JK
[/offtopic]
I am surprised that it works so well... hmm
Posted: Thu Apr 21, 2011 7:44 am
by jackssmirkingrevenge
POLAND_SPUD wrote:APFSDS rounds are so fuc#### awesome (let me post another pic of them)
