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SpudFiles Forum Index » Pneumatic Cannon Discussion » Aluminium Tube Pressure Rated?
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Brian the brain
PostPosted: 05/11/2008 2:07 AM    Post subject: Reply with quote

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outside and used galvanised 1/2".

You obviously need a threadcutter to do so.
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Mitchza89
PostPosted: 05/11/2008 5:37 AM    Post subject: Reply with quote

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That's really surprising. I thought the walls on the aluminium pipe was only about 1mm at most. Musn't have been a deep thread Confused
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Brian the brain
PostPosted: 05/12/2008 4:46 AM    Post subject: Reply with quote

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2-3 mm thick pipe walls.
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Mitchza89
PostPosted: 05/12/2008 5:29 AM    Post subject: Reply with quote

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Ah that would explain it.. The pipe I've seen at my local hardware shop has pretty thin walls. No doubt, just like other alloy and steel piping, you'd be able to get greater wall thicknesses.
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dongfang
PostPosted: 05/12/2008 14:32 PM    Post subject: Reply with quote

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Hi,

I tried to braze 2 small aluminium tubes together today. Hmmmm that´s difficult .... I got it to look all right, but I could just break the brazed tube in 2 ....

... Hmm there´s more to it than just that.

Regards
Soren
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Mitchza89
PostPosted: 05/12/2008 18:47 PM    Post subject: Reply with quote

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That's a real bummer Soren Sad I think BTB has the best idea. Get some thick walled tube and thread it. Aluminium is a very rigid alloy but is somewhat soft so it's very easy to thread provided you've got the right gear to do it.

Keep up the good work mate Smile

Mitch.
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dongfang
PostPosted: 05/13/2008 1:44 AM    Post subject: Reply with quote

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Hi,

It´t OK I am sure I will get on top of it in some time.

It is just like any other naive attempt at something one has never tried before: First result stinx, later you learn what will work and what won´t. My first spudgun was pretty terrible, too Wink

Cool thing is, I will take a welding course here. It starts next Monday Cool Cool !

Regards
Soren
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Mitchza89
PostPosted: 05/13/2008 6:15 AM    Post subject: Reply with quote

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Very nice mate Very Happy. I think everyones first spudgun is usually shocking haha. Mine was a ball valve and a bottle...

Best of luck with the course!
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