blow forward bolt
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suture self
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ok, this one has probably been done before so go easy on me if so, i would like to build this one if you guys think it would work let me know if you see anything wrong with it, other than the cheesy stock i added in paint
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- this is the mechanism in the open (firing) position, you can see the "bolt return line" filling with air
- auto bolt 2.JPG (27.85 KiB) Viewed 3411 times
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jackssmirkingrevenge
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The "bolt return line" is a waste of air, why not just use a spring?
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john bunsenburner
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Your diagram is a little unclear, leave out color when its not nessasary...
"Did you ever stop to think that out of the seven deadly sins envy is the only one which doesn't give the sinner even momentary pleasure"-George Will
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SpudsMcGee
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suture self
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JSR, shoulda mentioned but i'm going for full auto do you think this would cycle? 
maybe i should just scrap the idea, i know how everyone fells about spoonfeeding 
but maybe you could just save me some prototyping and point me in the direction of a good auto bolt design ::worthy:: 
[/quote]
maybe i should just scrap the idea, i know how everyone fells about spoonfeeding but maybe you could just save me some prototyping and point me in the direction of a good auto bolt design ::worthy:: [/quote]-
jackssmirkingrevenge
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The blow forward bolt can be made to cycle alone, have a look at this - but in my experience, this happens at a cycling rate so high that feeding ammunition is practcally impossible, not to mention the fiddliness of tuning the system. The bolt has to be combined with some sort of valve which "pulses" the air supply in order to be successful.suture self wrote:maybe you could just save me some prototyping and point me in the direction of a good auto bolt design
From what I've seen, the way this can be achieved without including some sort of externally powered electric/mechanical system is either using a pop-off piloted piston, or a pop-off valve directly, looks like you have some more research to do
