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High PSI internals?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Unread postAuthor: wyz2285 » Mon Oct 24, 2011 1:47 pm

I feel the same way

LOL looks like I´m not alone :P
look around suddenly it´s full of selection fire, solenoid...
it´s like everybody it´s in the era of advanced electronic and I´m still in pneumatic age :D
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: Ocheeboy11 » Mon Oct 24, 2011 3:35 pm

Hmm, seeing as I can't find a solenoid, I'm gonna machine a simple clamp to attach an actuator to the slide valve. I'll be back in a couple of days with a prelim cad. Can anyone run a ggdt to find the fps reached bya 150 g Shot with a 350psi, 1ft long, 1 in wide chamber, with a qev
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Unread postAuthor: wyz2285 » Mon Oct 24, 2011 3:42 pm

what´s the size of qev? and barrel btw
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: Ocheeboy11 » Mon Oct 24, 2011 5:36 pm

My bad, 1/2 in barrel and qev. Do you think the chambers big enough?
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Unread postAuthor: wyz2285 » Tue Oct 25, 2011 2:00 am

The chamber for me is enough for high pressure. How long is the barrel?
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: Ocheeboy11 » Tue Oct 25, 2011 3:35 pm

Hopefully about 2-2.5 ft long
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Unread postAuthor: Gun Freak » Tue Oct 25, 2011 3:56 pm

Why not longer? Is there room for ~4 feet?
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Unread postAuthor: Ocheeboy11 » Tue Oct 25, 2011 7:52 pm

I'll maximize based on size, might have a 2.5 and a 3.5. Depending on what I need, I can thread the barrel and receiver.
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Unread postAuthor: jackssmirkingrevenge » Tue Oct 25, 2011 11:55 pm

Gun Freak wrote:Is there room for ~4 feet?


There seems to be in most spudfiles illustrations :roll:
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Unread postAuthor: Gun Freak » Wed Oct 26, 2011 5:41 am

Image

... Yep. :tongue3:
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Unread postAuthor: jackssmirkingrevenge » Wed Oct 26, 2011 7:03 am

[url=http://en.wikipedia.org/wiki/[woman part]]:D[/url]
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Unread postAuthor: wyz2285 » Wed Oct 26, 2011 8:37 am

I did the GGDT with a 2.5 ft barrel, the muzzel velocity is around 100 fps (I don´t know much about your valve so...) muzzel energy around 75 ft*lb.
No erros so I would say the design is ok, even through I would use a light projectile for more fps and find the sweet spot of max power (I did a the same calculation with a 100g projectile, muzzel velocity 145 fps, muzzel energy 78 ft*lb).
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Unread postAuthor: POLAND_SPUD » Wed Oct 26, 2011 1:20 pm

ohhh btw if you haven't seen it yet
[youtube]http://www.youtube.com/watch?v=JyMpMPD7Tv0[/youtube]
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Unread postAuthor: wyz2285 » Wed Oct 26, 2011 3:23 pm

I can see it´s a gun, but I didn´t get how it works :lol:
is there a semi auto function with at console?
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Unread postAuthor: POLAND_SPUD » Wed Oct 26, 2011 3:27 pm

It's from this thread >>>
http://www.spudfiles.com/forums/big-stu ... t,180.html

Just wanted to show how a car lock actuator works
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