DEAD 43mm (GB) Semi-Auto Video 2!
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POLAND_SPUD
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Nice
Children are the future
unless we stop them now
unless we stop them now
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jackssmirkingrevenge
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... but at the same time, you're losing air pressure because of air leaking into the magazine before the bolt is fully closed...c11man wrote:i saved some preformace lose do to chocked flow.
hectmarr wrote:You have to make many weapons, because this field is long and short life
shit happens, its still plenty powerfuljackssmirkingrevenge wrote:... but at the same time, you're losing air pressure because of air leaking into the magazine before the bolt is fully closed...c11man wrote:i saved some preformace lose do to chocked flow.
video has been added to the original post enjoy!
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jackssmirkingrevenge
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So I can see, good stuffc11man wrote:crap happens, its still plenty powerful
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Gaderelguitarist
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Well now after seeing that video I may just stumble back into trying to make a semi again. Might stay low calibur though. Who knows... 
I still think you could cut a foot off of your chamber. I feel as though since you have such an effective bolt, that you should further optimize this for conservation or time and air.
I still think you could cut a foot off of your chamber. I feel as though since you have such an effective bolt, that you should further optimize this for conservation or time and air.
so many muchness
Nice. About the only comment I could make is you may consider adding a detent to keep some of the balls from rolling out the barrel.
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Gun Freak
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Hubb I was meaning to ask you, does an o-ring detent in ANY WAY OR AMOUNT effect the performance? I want to put one on my GB piston valve cannon, but I'm not sure if it will harm performace.
OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna" ■ M16 BBMG ■ Pengun ■ Hammer Valve Airsoft Sniper ■ High Pressure .22 Coax
Holy Shat!
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jackssmirkingrevenge
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Assuming the air has nowhere else to go, a detent will actually increase performance, because it gives the valve more time to open and more pressure buildup behind the projectile before it starts to move. A properly engineered detent can be used on a valveless launcher that would have better performance than a burst diskGun Freak wrote:Hubb I was meaning to ask you, does an o-ring detent in ANY WAY OR AMOUNT effect the performance? I want to put one on my GB piston valve cannon, but I'm not sure if it will harm performace.
hectmarr wrote:You have to make many weapons, because this field is long and short life
If anything, it would probably help performance, although it probably wouldn't be noticed with electronics. The detent would hold the round just a little bit longer and will build pressure behind the round before it releases.
I think JSR used this concept in one of his builds...
Edit: Okay, apparently I was too late in my response, but I figured he would have provided the link to one...which he did.
I think JSR used this concept in one of his builds...
Edit: Okay, apparently I was too late in my response, but I figured he would have provided the link to one...which he did.
Last edited by Hubb on Thu Apr 22, 2010 3:05 pm, edited 2 times in total.
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jackssmirkingrevenge
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Just oneHubb wrote:I think JSR used this concept in one of his builds...
A good thread on the subject
hectmarr wrote:You have to make many weapons, because this field is long and short life