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my second shock pump (full diatelas)

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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my second shock pump (full diatelas)

Unread postAuthor: far_cry » Tue Jul 07, 2009 6:06 pm

i finished building my new hand pump .and she work nice

the highest pressure i get from this pump is 700 psi
the cylinder is 2.7mm in diameter
the shaft rod is 8mm

any questions ? fell free to ask

and here the pictures of the lady shocky

the chick valve parts
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the piston
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the cylinder+shaft+chick valve

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the pump stand waiting for work

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Last edited by far_cry on Sat Jul 16, 2011 3:27 pm, edited 3 times in total.
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Unread postAuthor: THUNDERLORD » Tue Jul 07, 2009 6:13 pm

"She" looks soo sexy,
Hope she don't shoot another hole in you hand. :P

Wish there were some more diagrams...700psi(really???), Awesome pump there!!! 8)
Thanks
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Unread postAuthor: Gippeto » Tue Jul 07, 2009 7:23 pm

Nicely done Far Cry. 8)

Nice sturdy handle on it too. :wink:
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Unread postAuthor: jonnyboy » Tue Jul 07, 2009 8:05 pm

Nice build, I thought about building a shock pump but I really don't have the need for one. :cry: I do have a high pressure project in the works but co2 sounds better anyway.

On your chick valve what 2 pieces did you weld together?

BTW nice welding job :lol:
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Unread postAuthor: twizi » Tue Jul 07, 2009 9:19 pm

jonnyboy wrote: I thought about building a shock pump but I really don't have the need for one.:


if u build one im sure youll find somthin to do with it :shock:

btw whats the cylinder
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Unread postAuthor: THUNDERLORD » Wed Jul 08, 2009 12:16 am

Forgot to mention, You could always get a good injury attorney and sue the company that made the other pump that broke (and injured your hand).
Maybe you're still having nightmares about the whole incident...
Even became obsessed to build a metal pump(???)... :P 8)
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Unread postAuthor: Technician1002 » Wed Jul 08, 2009 12:32 am

THUNDERLORD wrote:Forgot to mention, You could always get a good injury attorney and sue the company that made the other pump that broke (and injured your hand).
Maybe you're still having nightmares about the whole incident...
Even became obsessed to build a metal pump(???)... :P 8)


Abuse of the product on the part of the end user might be proved and not be a manufacturing defect. May need to read the owners manual. Proper hand placement and pressure may have avoided this accident. This would not be an open and shut case against a company for a defective product.

But then again, getting hot coffee and it actually being hot.. May have a chance.

These lawsuits are why manufacturing is leaving the USA. The Flu vaccine is produced overseas simply due to the high cost and risk of lawsuits. It is why I don't manufacture and sell t shirt launchers.
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Unread postAuthor: THUNDERLORD » Wed Jul 08, 2009 12:39 am

Technician1002 wrote:.. May have a chance...


So what's your point then???
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Unread postAuthor: inonickname » Wed Jul 08, 2009 2:58 am

Yep- America is extremely sue happy.

As technician said, people suing McDonald's for her coffee being too hot- they now have to serve it under a certain temperature.

And the woman who was driving her Winnebago, got up, made a coffee and crashed. She sued Winnebago (and won) because the ad said she could do that..

On topic: Very nice pump! How do you get such high pressure with that sized cylinder?

Very noice!
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Unread postAuthor: far_cry » Wed Jul 08, 2009 5:09 am

Gippeto wrote:Nicely done Far Cry. 8)

Nice sturdy handle on it too. :wink:


thank you. this handle will not break into my hand


jonnyboy wrote:Nice build, I thought about building a shock pump but I really don't have the need for one. :cry: I do have a high pressure project in the works but co2 sounds better anyway.

On your chick valve what 2 pieces did you weld together?

BTW nice welding job :lol:


thank you.i have been welding a lot in my life.and the chick valve is galvanized 3\4" nipple with inner threads (i did not know what they call it)

twizi wrote:btw whats the cylinder

he is 3\4" aluminium pipe
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Unread postAuthor: twizi » Wed Jul 08, 2009 4:35 pm

oh so the pump is a hey
ps thats weird man
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Unread postAuthor: mark.f » Wed Jul 08, 2009 4:38 pm

I think that's just a result of the translation to english. He and it can be confused quite easily, if you read far_cry's other posts.

PS, good job man!
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Unread postAuthor: twizi » Wed Jul 08, 2009 4:50 pm

oh so he mean it gotcha
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Unread postAuthor: spudamine » Wed Jul 08, 2009 5:11 pm

Looks nice. Good work on the checkvalve, just watch that sucker for rust. mine needed rebuilding after a month, the steel bolt was severly corroded from water condensing inside the valve. used stainless the second time around.
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Re: my second shock pump (full diatelas)

Unread postAuthor: boyntonstu » Wed Jul 08, 2009 6:47 pm

I finished building my new hand pump .and she work nice

the highest pressure i get from this pump is 700 psi
the cylinder is 20.7mm in diameter


Nice work.

A question about 20.7 mm and 700 psi.

20.7 mm is about 0.8" and that works out to about 0.5 sq in.

To get 700 psi out of 0.5 sq in you need to apply 350 pounds of force.

How do you apply 350 pounds of force?

How many cu in are in your chamber and how many pumps does it take to fill it?

I am following in your footsteps and I want to get it right.

BoyntonStu
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