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How to run wires through chamber wall

A place to ask general spud cannon related questions.
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How to run wires through chamber wall

Unread postAuthor: Pete Zaria » Sat Jan 13, 2007 3:56 am

I was pondering a way to run wires (for instance, from a stun gun to a spark strip or the wires for a fan) through the wall of the combustion chamber without unnecessary holes.
I'm building an over/under combustion with a ball valve to vent the chamber. The reducer and ball valve on the back of the chamber are going to be attached to the chamber with screws - not glue - to allow for chamber maintenance in the future. So I came up with this idea. It's pretty self-explanatory. Let me know what you think.

Peace,
Pete Zaria.
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Unread postAuthor: sjog » Fri Jan 19, 2007 9:24 pm

Thru bolting is the way I did it in my gun.
The "feet" are lead coated copper.
Residue on fan from deoderant.Image
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Unread postAuthor: SpudBlaster15 » Fri Jan 19, 2007 9:57 pm

Exposed lead surface + 4500*F = Dont inhale your combustion products.
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Unread postAuthor: sjog » Fri Jan 19, 2007 10:02 pm

Thanks for the tip!
Does a gun using deoderant get that hot?
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Unread postAuthor: chaos » Fri Jan 19, 2007 10:34 pm

plz post pic of finished gun and damage pics 2
thnx

C@SE-G
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Unread postAuthor: SpudBlaster15 » Sat Jan 20, 2007 2:55 am

sjog wrote:Thanks for the tip!
Does a gun using deoderant get that hot?


The adiabatic flame temperature of a stoichiometric mixture of propane and atmospheric air is approximately 4500*F. Considering the significant heat loss to other internal surfaces of your gun, and the fact that a stoichiometric mixture using deodorant is difficult to acheive, I estimate a flame temperature of ~3500*F.
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Unread postAuthor: WOW!! » Mon Jan 22, 2007 10:20 pm

The way you got it looks good. Just put some sealer to the threads so it stay air tight.
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Unread postAuthor: chaos » Fri Feb 09, 2007 10:32 am

soz i know that this is an old post but i do have a prob with my wires there insulated because of a steel chamber but they are melting coz of heat

help apreciated
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Unread postAuthor: sjog » Fri Feb 09, 2007 6:46 pm

fly back circuit wire?
Wire from an electric stove?
Put 'em in side wood stove gasket- It's made from fiberglas now
buy high temp wire at supply house
1/4" tubing --conduit
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Unread postAuthor: chaos » Fri Feb 09, 2007 9:14 pm

wood stove gasket? pic please
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Unread postAuthor: sjog » Fri Feb 09, 2007 9:45 pm

wood stove gasket is fiberglas "rope" in different dia..
it's like samson braid, hollow woven, not three strand.
it is 1/4 to 3/4" - fit wire down middle

chaos- I will post pic if you want but not tonight, I use wood for heat
and use the stuff on stove door and other places to stop drafts.
It doesnt burn soft and easy to work
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Unread postAuthor: chaos » Sat Feb 10, 2007 10:32 pm

oh ok mate cheers ive got these plugs for my fan plastic but im just gonna coat em in heatproof silicone dont worry about the pictures ive got it sorted.

peace
chaos
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