High PSI internals?

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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wyz2285
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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
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
Ocheeboy11
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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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wyz2285
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Mon Oct 24, 2011 3:42 pm

what´s the size of qev? and barrel btw
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
Ocheeboy11
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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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wyz2285
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Tue Oct 25, 2011 2:00 am

The chamber for me is enough for high pressure. How long is the barrel?
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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Tue Oct 25, 2011 3:35 pm

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

Why not longer? Is there room for ~4 feet?
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Ocheeboy11
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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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jackssmirkingrevenge
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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:
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Gun Freak
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Wed Oct 26, 2011 5:41 am

Image

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

:D
hectmarr wrote:You have to make many weapons, because this field is long and short life
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wyz2285
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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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POLAND_SPUD
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Wed Oct 26, 2011 1:20 pm

ohhh btw if you haven't seen it yet
[youtube][/youtube]
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wyz2285
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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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POLAND_SPUD
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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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