Semi-auto valve for under $20

A place for general potato gun questions and discussions.
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AircannonSweden
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Tue Jul 17, 2012 3:18 pm

Thanks JSR :) i maybe will buy it
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jackssmirkingrevenge
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Tue Jul 17, 2012 3:22 pm

Careful though, the orifice is probably very small - so for anything over 4.5mm you'll want to use this is a pilot valve for a QEV or piston valve rather than a main valve.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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AircannonSweden
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Tue Jul 17, 2012 3:56 pm

Okey :/ i are building on a QEV gun right now so i probely wait to buy that electric valve...the only thing missing on the QEV gun right now is a airtank but i will go to Swedol( http://www.swedol.se/en/ ) this week and buy a bulkhead to the tank so i can be finished with it so i can put it up on spudfiles :)
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dewey-1
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Sun Sep 02, 2012 4:35 pm

Here is CAD rendering for QE-02 and slide valve.
If any one one wants .sat file please PM me.
Attachments
QE-02-CAD.jpg
Slide-Valve-.25BSPP-CAD-X.jpg
QE-02-CAD-X.jpg
Last edited by dewey-1 on Fri Feb 01, 2013 12:52 pm, edited 3 times in total.
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jackssmirkingrevenge
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Sun Sep 02, 2012 4:39 pm

Brilliant dewey, cheers :)
hectmarr wrote:You have to make many weapons, because this field is long and short life
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dewey-1
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Sun Sep 02, 2012 4:42 pm

Thanks JSR.
I added the slide valve while you were posting. :)
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jackssmirkingrevenge
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Sun Sep 02, 2012 4:45 pm

So I see, that I can take a bit of credit for :)
hectmarr wrote:You have to make many weapons, because this field is long and short life
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dewey-1
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Sun Sep 02, 2012 4:52 pm

You can have all the credit except for the threads and knurling! :D
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jackssmirkingrevenge
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Mon Sep 03, 2012 3:09 am

*bows*

Added them to the first page. Can you do section views? I tried in SW but it's a uniform grey colour...
hectmarr wrote:You have to make many weapons, because this field is long and short life
iknowmy3tables
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Mon Sep 03, 2012 4:03 am

just wondering since this slide vlave comes with bsp threads could I cut bsp threads with an NPT tap/die to make them fit structurally fit npt
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jackssmirkingrevenge
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Mon Sep 03, 2012 4:12 am

1/4 BSP is 19 TPI, 1/4 NPT is 18 TPI, so it sounds doable, but I couldn't trust the joint unless it was also secured with an appropriate adhesive.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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dewey-1
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Mon Sep 03, 2012 7:39 am

jackssmirkingrevenge wrote: Can you do section views? I tried in SW but it's a uniform grey colour...
Done!
I can not believe you can not do colors with SW.
There must be a way to do that.
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jackssmirkingrevenge
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Mon Sep 03, 2012 8:13 am

Cheers! first page updated :)

When I open the .sat file in SW I cannot differenciate between individual components...
hectmarr wrote:You have to make many weapons, because this field is long and short life
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shiny455
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Thu Sep 13, 2012 6:17 am

i was finally happy with a design then i had to come along and read this to find out all i have to do is turn the slide valve around for semi auto :evil: now i just gotta find a way to have a reservoir connected to the back of the gun, a chamber and it still look good.
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AircannonSweden
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Thu Sep 27, 2012 3:47 pm

Is it hard to pull back the slide-valve when you have preassure "in it"?
As always,have a nice day - FPSrussia
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