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My new 260psi pump

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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My new 260psi pump

Unread postAuthor: chaos » Mon Feb 26, 2007 2:59 am

Here is my new bike pump,
features

-stainless steel braided hose
-260psi(18bar)rated
-0 to 260psi gauge

and more that i cant think of right now

Pics

http://s162.photobucket.com/albums/t274 ... s--x/Pump/
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Unread postAuthor: Punstype » Mon Feb 26, 2007 3:49 am

where did you get that pump from,and how much did it cost?
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Unread postAuthor: chaos » Mon Feb 26, 2007 4:17 am

i got it from a bike shop and it cost $100 aus

peace
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Unread postAuthor: Hotwired » Mon Feb 26, 2007 4:48 am

Oooh nice :D

Looks like a oversize shock pump but in a track pump design. It'll be good for getting high pressure comfortably.

I'm going to have to get myself a 300psi shock pump now :wink:
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Unread postAuthor: chaos » Mon Feb 26, 2007 5:08 am

lol yer i still got a prob with my cannon: because the back of the piston has a female thread when i fire it gets stuck there :cry: so ill rebuild this weekend hopfully it will be ready for some action :twisted:

peace
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Unread postAuthor: schmanman » Mon Feb 26, 2007 6:24 am

chaos wrote:lol yer i still got a prob with my cannon: because the back of the piston has a female thread when i fire it gets stuck there :cry: so ill rebuild this weekend hopfully it will be ready for some action :twisted:

peace


put a spring behind the piston!
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Unread postAuthor: Recruit » Mon Feb 26, 2007 7:29 am

That pump should last a while and serve well.
Schmanman pls make that pic in the sig smaller the size of it is ridicous when you consider that is takes up half the screen.
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Unread postAuthor: jrrdw » Mon Feb 26, 2007 10:07 am

They should build these pumps duel action. I bet it's hard pumping at around 150/170 psi! A lot of work to go shooting, but good exercise. It's a good one.
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Unread postAuthor: Hotwired » Mon Feb 26, 2007 11:30 am

There are actually.

Dual tyre and shock pumps in one you switch the cylinder to a smaller one by twisting something for higher pressure.

Annoying in-line handheld ones only though :?
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Unread postAuthor: chaos » Mon Feb 26, 2007 3:01 pm

schmanman wrote:
chaos wrote:lol yer i still got a prob with my cannon: because the back of the piston has a female thread when i fire it gets stuck there :cry: so ill rebuild this weekend hopfully it will be ready for some action :twisted:

peace


put a spring behind the piston!


it has a spring man. the piston gets stuck on the in internal thread plus springs decrease the performance of the piston.
any other ideas?

peace
chaos
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Unread postAuthor: dippydodo03 » Mon Feb 26, 2007 7:43 pm

Shave off or cover (with epoxy) the internal threads that are getting the piston stuck. Wouldn't argue with schmanman about piston valves.
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Unread postAuthor: LGM » Mon Feb 26, 2007 8:02 pm

Looks nice, especially for metal cannons. What is a shock pump?
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Unread postAuthor: schmanman » Mon Feb 26, 2007 8:16 pm

If you have access to a lathe, or a round file, file down the ridges where the piston is getting stuck. :)

dodo *snickers*, I never said I was all knowing, while I do know a fair share about piston valves, or most any potato gun valve, I still, like everyone, have much to learn. :wink:

piston valves are really in their infancy.
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Unread postAuthor: chaos » Wed Feb 28, 2007 3:23 pm

dippydodo03 wrote:
Shave off or cover (with epoxy) the internal threads that are getting the piston stuck. Wouldn't argue with schmanman about piston valves.



i wasnt agruing mate all i said was ive alredy tried doing wat he said.

im thinking because there is exess thread i'll cut it to size and make the piston a bit shorter.

peace

EDIT---------i cut the thread down and now it perfect the spin is still a lil to tight
But all good at 700fps

peace
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Unread postAuthor: Hotwired » Wed Feb 28, 2007 3:34 pm

LGM wrote:What is a shock pump?


On mountain bikes there are often pneumatic cylinders acting as suspension - otherwise known as shocks. They're filled with 200-300psi air and shock pumps are used to fill and top them up.
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