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 High pressure co-axial build log- updated 11/14/08 « View previous topic :: View next topic » 
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Gippeto
PostPosted: 04/27/2008 9:33 AM    Post subject: Reply with quote

Colonel
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Thanks guys. Smile

trae08, I used the dead weight tester at my work.

It's essentially a hydraulic pump with a hydraulic piston and calibrated weights.

Lift the weights which are stacked on the piston, and you know how much pressure is in the system.

Super accurate to put it mildly. It goes up to 15 000psi.
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pizlo
PostPosted: 04/27/2008 9:35 AM    Post subject: Reply with quote

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trae08 wrote:


and that is one of the most amazing coaxials i have seen.


Whatm coaxes are better?
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bigbob12345
PostPosted: 04/27/2008 9:45 AM    Post subject: Reply with quote

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Mine is Cool
just kidding

Anyway vid makes it look powerful and that was only 120psi
The extreme pressures your taking it too should give a little more omff
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Mitchza89
PostPosted: 04/27/2008 18:43 PM    Post subject: Reply with quote

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Fair enough to get up to a few thousand PSI at work but what about at home mate? What's the PSI range you reckon you're able to achieve at home? With a fridge pump, 600psi or so I spose Confused.
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Gippeto
PostPosted: 04/27/2008 21:24 PM    Post subject: Reply with quote

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Scuba tanks and hpa for paintball are 3000psi. Very Happy

I currently have air, CO2 and N2.

Next big project. Very Happy Very Happy


http://www.kissrebreathers.com/baby_booster.html
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Mitchza89
PostPosted: 04/27/2008 21:26 PM    Post subject: Reply with quote

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Shocked Ah....there is a solution to every problem Very Happy.
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Mitchza89
PostPosted: 05/18/2008 21:27 PM    Post subject: Reply with quote

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Sorry to bump an old thread but how is the constuction going Gippeto?
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Gippeto
PostPosted: 05/19/2008 22:39 PM    Post subject: Reply with quote

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Hey Mitch.

Too slowly for my taste, but progress is progress.

Between site plans and permit applications (building a house this summer), I have the stock about 3/4 done. Rolling Eyes
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FordGtMan
PostPosted: 05/19/2008 22:43 PM    Post subject: Reply with quote

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Have there been any 3000 psi shots yet? OMG! i cant wait!!!! Very Happy Twisted Evil
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Gippeto
PostPosted: 05/19/2008 22:50 PM    Post subject: Reply with quote

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Not yet, but not to worry;

I will most definitely post it when the day arrives. Wink
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Mitchza89
PostPosted: 05/19/2008 23:37 PM    Post subject: Reply with quote

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Best of luck mate. I hope all goes well with the house building. My parents are in the process of building 2 houses at the moment so I know how time consuming it can be.

All the best and have a good one,

Mitch.
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Dumb-kid
PostPosted: 05/23/2008 0:29 AM    Post subject: Reply with quote

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man this is a monster i watched the vid
i was shocked for a sec
love it Surprised
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Mitchza89
PostPosted: 05/23/2008 21:09 PM    Post subject: Reply with quote

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I really can't even comprehend this gun at 3000psi... That's just mind bogling power...
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skymeat
PostPosted: 06/28/2008 1:42 AM    Post subject: Reply with quote

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Whoa. Super cool. I mean cooler than I had actually imagined. Swaging your own slugs with (homemade dies?)..

... So if you get "500grain slug @886fps " thats like 800 something FPE!

So from your pictures I am wondering: Are you designing it to be multi shot(only a fraction of the reservoir depleted) or to dump the entire air supply with a shot?

Also, if you are dumping the reservoir in a single climax are there going to be issues with the friction of the air generating excessive heat to the components?


In any event....Looking at the pictures and imagining left me with a big foolish grin.
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Mitchza89
PostPosted: 06/28/2008 5:40 AM    Post subject: Reply with quote

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With the hammer valve that acuates this gun, it's hard to say if it'll be a repeater or not. Unless there is a spring behind the piston, it won't be a repeater. I just finished my high pressure repeater that uses a high flow modded pop off valve, almost no pilot area and a spring behind the piston, I'll have to post it soon!
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