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Thread: [How-To]: 'Cocker Low Pressure Gauge Tool

  1. #1
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    [How-To]: 'Cocker Low Pressure Gauge Tool

    Thought I'd share. This is a tool consisting of, in my case, a single piece of machined aluminum as well as several fittings and a length of standard pneumatic hose.

    The main fittings are a #10-32 to 1/8" OD Slip fit connectors, a pair of them, one side to connect the existing hose, and the other fitting on the opposite side with a length of hose to connect to the fitting (be it the LPR, 3-way, RAM, Solenoid, what have you).
    Pic: http://www.palmer-pursuit.com/cart/i...ITT105_LRG.jpg
    (available from Palmers -> http://www.palmer-pursuit.com/cart/i...roducts_id=105)


    Of course we need a gauge to read the pressure, 0-100psi will do the trick, and since the whole name of the game is accuracy, I went with an Ashcroft gauge. They're higher quality and accurate within 2%, sporting standard 1/8"-27 NPT threads.
    Pic: http://www.palmer-pursuit.com/cart/i...%20465_LRG.jpg
    (0-100psi version not pictured, I know x_x)
    (available from Palmers -> http://www.palmer-pursuit.com/cart/i...products_id=70)


    The last main piece I opted for is a 1/8"-27 NPT bleeder valve, so you can easily and safely de-gas after you turn off your gas source. Push-activated and nice and compact, rated to 200psi, plenty for this situation.
    Pic: http://www.palmer-pursuit.com/cart/i...leeder_LRG.jpg
    (available from Palmers -> http://www.palmer-pursuit.com/cart/i...roducts_id=115)


    Good to note that the hosing im quoting as "standard" in this case, is 1/8" OD 1/16" ID pneumatic tube that we're all accustomed to when it concerns Autocockers. Always handy to have some extra on-hand, and it's cheap.
    (available from Palmers -> http://www.palmer-pursuit.com/cart/i...products_id=73)

    Aside from the piece of stock and it's subsequent machining, the fittings, gauge, and a foot of hose will run you just shy of $40 from PPS, before shipping.

    Here's what I did;

    - Started with 1.5" x 1.5" T6-6061 Aluminum
    - Saw cut a 3/4" section
    - Deburred
    - Drilled a thru-hole (Hole 1) with a #21 (0.159") drill for #10-32 threads
    - Drilled a blind-hole (Hole 2) with the #21 drill to 3/4" depth
    - Drilled a blind-hole (Hole 2) with an "R" (0.339") drill for 1/8"-27 NPT threads to 5/8" depth
    - Drilled a blind-hole (Hole 3) with the "R" drill to 3/8" depth
    - Tapped all holes
    - Deburred tapped holes
    - Cleaned all surfaces on a belt grinder


    P.S. I'm not trying to advertise for PPS, it's just one of my go-to places for paintball-related pneumatics.
    Last edited by Tesko; 04-10-2012 at 07:54 AM.

  2. #2
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    Palmers shipment came in today, so I finished her up;


  3. #3
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    Avondale MO right in the middle of Kansas City..
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    ok my question is what and where do you hook it? from the lpr to the 3-way?
    Take me to your leader my cat will know what to do from there.
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  4. #4
    Join Date
    Jan 2009
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    Quote Originally Posted by PsYcHoHoLiC View Post
    ok my question is what and where do you hook it? from the lpr to the 3-way?
    exactly, you want it as close to the LPR as possible to get the most accurate reading. The relief valve is awesome btw, makes doing adjustments super easy I would imagine.

  5. #5
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    Oct 2007
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    Mankato MN
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    Wow Tesko, nice work!

    Would you consider selling these to those of us that are extremely limited in our access to machine tools/adequate tools in general?

  6. #6
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    Quote Originally Posted by blackmagic71 View Post
    Wow Tesko, nice work!

    Would you consider selling these to those of us that are extremely limited in our access to machine tools/adequate tools in general?
    good ?

  7. #7
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    Oct 2006
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    It's taken me forever to update this, but I finally got a chance to try this tool out last weekend, worked like a charm! I'll be cranking some out this fall (sans-fittings) and hooking people up who asked all those months ago.

  8. #8
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    Oct 2006
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    Adding some fresh pictures:


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