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spool valve design. primary intention: paintball

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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spool valve design. primary intention: paintball

Unread postAuthor: markdem » Sat Aug 17, 2019 8:30 am

i came up with this design a few years ago and my intentions were to keep it secret until i could come up with a better prototype version that i could eventually produce and sell. my dream was - and still is - to have it cast in aluminium, very similarly to the Tippmann SL68's.

the prototype was a semi-success. very first gassing up was video recorded. malfunction was initially thought to be burrs from machining tearing up the o-rings. however my assumption now is that i was using cheap o-rings which swelled from pressurized co2. sadly i cant verify this assumption because the prototype is now in a landfill somewhere but i am fairly confident because i made a pump action nelson valve after this prototype with buna-N o-rings which worked quite well.

If anybody would like to use this information to create one of their own, i just ask to be given credit for the initial design and prototype. thank you



paintball animation simple.gif
animation of concept

measured schematic METRIC.png
metric
measured schematic METRIC.png (5.8 KiB) Viewed 288 times

measured schematic ENGLISH.png
english for you old-world primitive types
measured schematic ENGLISH.png (5.99 KiB) Viewed 288 times

20170610_021935 - Copy.jpg
all parts pre-assembly

20170610_021940 - Copy.jpg

20170610_021948 - Copy.jpg

triggered.png
this is the concept which i believe to be the best. the trigger holds back both the bolt AND keeps the paintball in place at the same time
triggered.png (4.49 KiB) Viewed 288 times

triggered pump.png
basically how i wanted the thing to look when i was done. pump action - of course
triggered pump.png (20.12 KiB) Viewed 288 times
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Re: spool valve design. primary intention: paintball

Unread postAuthor: jackssmirkingrevenge » Sat Aug 17, 2019 10:04 am

Nice work, I like it.

Image

this is the concept which i believe to be the best. the trigger holds back both the bolt AND keeps the paintball in place at the same time


Interesting idea!
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Re: spool valve design. primary intention: paintball

Unread postAuthor: Moonbogg » Sat Aug 17, 2019 2:28 pm

That's a really clever design. I like it! Nice work as well. Very interesting.
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Re: spool valve design. primary intention: paintball

Unread postAuthor: hectmarr » Sun Aug 18, 2019 11:07 am

I like the simple design. Good job.
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