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Breech Slider

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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Breech Slider

Unread postAuthor: SpoonZ » Sun Jul 01, 2007 4:54 am

I can't get my breech slider to seal. I have 15mm pipe and a 20mm slide. I can't use orings as they are too big and just make it almost impossible to slide.

By slide I mean something like this. http://www.spudfiles.com/forums/my-firs ... t5887.html

Anyone know how to get a good seal? There is like 2mm Space between the barrel and the 20mm slide piece.
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Unread postAuthor: chaos » Sun Jul 01, 2007 5:09 am

tape 4TW

message to short
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Unread postAuthor: SpoonZ » Sun Jul 01, 2007 5:26 am

I dont think tape would hold off 100PSI. Unless you have some super tape?
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Unread postAuthor: chaos » Sun Jul 01, 2007 5:37 am

bullsh!t if its only for a breech its a short burst of pressure, now i have used electrical take and o-ring grease to seal my breech, although mine is a rotating breech, that might change some things.

but it seals at 260-300 and im sure it would hold more for it is only a short discharge of air.
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Unread postAuthor: SpoonZ » Sun Jul 01, 2007 5:54 am

Fair enough. Do you just put the tape on either side of the breech hole on the barrel then slap some grease on and slide your cover on?
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Unread postAuthor: chaos » Sun Jul 01, 2007 6:05 am

i just wrap tape over the breech hole until its snug then drill away the tape over the hole, *(actualy i cut an X into the tape over the hole and doing this eliminates the need for wadding with marbles
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Unread postAuthor: SpoonZ » Sun Jul 01, 2007 6:26 am

Alright thanks. Shall give that a try and see how it goes.
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Unread postAuthor: chaos » Sun Jul 01, 2007 6:27 am

Ok mate good luck with it i hope it works as good for you as it did for me :D

peace
~chaos
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Unread postAuthor: shud_b_rite » Sun Jul 01, 2007 6:30 am

I used to make bottle rockets. I wrapped a pipe in duct tape until it would fit tightly inside the bottle neck. Many times the bottle rocket wouldn't go off because the duct tape sealed too good, even at 120psi. So i just unwrapped it a little until it would release under pressure. And I never had to replace the tape.
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Airbeds... so many different uses
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Unread postAuthor: spud yeti » Sun Jul 01, 2007 9:38 am

Yeah tape should work great if its ony for the breech! It doesnt really matter if a little bit of air leaks during the shot anyways. It certainly wont be much!
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really good quote/phrase here
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Unread postAuthor: 666lucky693 » Sun Jul 01, 2007 10:51 am

yea it should work tape holds my chamber in my guns
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Unread postAuthor: chaos » Sun Jul 01, 2007 10:49 pm

666lucky693 wrote:yea it should work tape holds my chamber in my guns


:shock:


do you like pain? i hope it not a pneumatic that the tape is holding the chamber on.
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Unread postAuthor: pyromaniac » Sun Jul 01, 2007 10:58 pm

666lucky693 wrote:yea it should work tape holds my chamber in my guns

dude...............
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Unread postAuthor: chaos » Sun Jul 01, 2007 11:15 pm

i lol'd :lol:


yer man dont risk it with stuff like this, unless you know what is going to happen and know how to prevent injury or death, use the right materials ect.

i just cant help but wonder how many people registered on this forum are no longer "with us".
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Unread postAuthor: turbohacker » Sun Jul 01, 2007 11:19 pm

Try using a small piece of shd 80, and bore it out to the appropriate size for an optimum fit. :D
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<-- This is not a cat avatar

If it walks like a dog, sratches like a dog, and barks like a dog, than its probobly a...-TURTLE, it's a TURTLE!!! Cant you see?!!!

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Thats a beast!
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