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Dchap-p

Build on CaptainSlug's design

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#1 Prometheus

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Posted 27 July 2007 - 11:18 AM

So, I was talking to Sluggy, and I was like "damn, that's a kick-ass thang," but after a while, I was wanting more.
I was looking at the valve in my AT3K, and said "Promy, that's what your looking for," so I decided to build this.

Full credit goes to CaptainSlug for the original design, and for buidling something that finally prompted me to try and revise and improve.

http://aycu24.websho...64674041_rs.jpg
http://aycu14.websho...89117143_rs.jpg

It's the dchap-P

For dirt cheap homemade air powered - Prometheus' version.

It uses:
2x 5/16" washers
2x 5/16" nuts (special ones)
1x 1/2" SCH 40 coupler
2x 1/2" PVC endcap
1/2" 200 PSI thinwall PVC
1/2" SCH 40 PVC
5/16" ID o-ring
5/8" ID, 13/16" OD, 3/32" thick o-ring
1/4" drill bit (HSS was used)
5/16" drill bit (HSS was used)
drill/drill press
some type of grinding tool (dremel was used)
Plumber's Goop (suitable PVC and rubber bonding material can be used as substitute)

Mine is very different, but builds on CaptainSlug's original design. I use 2 o-rings to make a seal. One is 5/16"" ID, and the other is 5/8" ID, 13/16" OD, 3/32" thickness. The reason I used these is that the 5/16"" ID ring seals around the bolt, which actuates the movement of air. The second o-ring seals agains the other end of the bolt, against a special type of nut. I have no idea what typ of nut it is, other than it is a spare from my garden tractor when I removed the mower deck. It's pretty standard on most lawnmowers, to just trading for a regular nut won't hurt.

Here is the first design I made, which is very close to the design I'm using.

http://aycu16.websho...16015095_rs.jpg

The design on the right is the one that I am using, but instead of using the fender washer (purple/pink), I used the nut and o-ring.

Here is another picture of all the parts disassembled. The spring is one I found at my local hardware store, and I cut it in half for this purpose. Measures for the spring will follow.
http://aycu15.websho...74355040_rs.jpg

The valve currently can be separated into 2 pieces, as seen here.
http://aycu39.websho...00153104_rs.jpg

Here is the piece that I ground the end off, and inserted into the hole drilled into the side of the valve.
It is barbed on one end, and I have no idea what it would be used for. I am using 3/8" OD vinyl tubing on it now.
http://aycu03.websho...71047380_rs.jpg

More detail such as measures on the PVC lengths will follow.

Edited by Prometheus, 27 July 2007 - 11:48 AM.

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QUOTE(VACC @ Jan 24 2008, 06:12 AM) View Post
I am NEVER going to sleep naked in the bed of a former child star ever again....seriously

#2 shadowkid33

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Posted 27 July 2007 - 11:27 AM

Cool. Do you get the same range as CS's one?
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QUOTE
how the heck do you make a double clip?

QUOTE
Here are the steps.
1. Go to the search button in the right corner of the screen
2. Click
3. Search double longshot clip.

QUOTE
i dont have time, jeez, im new here!

#3 Prometheus

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Posted 27 July 2007 - 11:50 AM

Cool. Do you get the same range as CS's one?



Haven't hooked it up to a gun yet, but I'll probably use it to replace a ball valve for a charging tank on a gun. Then I'll use and AT2/3K valve for my main firing valve.

Edited by Prometheus, 27 July 2007 - 11:53 AM.

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QUOTE(VACC @ Jan 24 2008, 06:12 AM) View Post
I am NEVER going to sleep naked in the bed of a former child star ever again....seriously


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