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In this instructable I will attempt to show you how to make a fire piston using relatively common materials found at your local hardware store. It too...
Cut approximately 5" of the brass rod using a hacksaw. We're cutting it a little longer than we need, the excess can be trimmed off when we are fitti...
On a lathe use a triangle file to reduce the shaft diameter to 0.175" The tapered part should be at roughly a 45 degree angle. Next file one side of t...
Start off using a small bit to drill a pilot hole, this will make drilling the larger hole quite a bit easier. Make sure the hole is centered and perp...
With the pilot hole drilled you can now proceed to drill the large hole. A number 31 bit seems to be about the right size. Notice how there is still a...
Using a file cut a slit through the end of the piston to meet the hole we drilled. If you had too much excess material between the hole and the piston...
The threads on brass nipple piping is tapered so you won't be able to screw it on the whole way. Its a good idea to thread it on and off a few times ...
Fill the cap up all the way with the expoxy. I suggest "JB Weld" or "Cold Weld" not the putty variety. Thread the cap on as far as you can. Leave sit...
Using a large tapered punch, flare out the end of the brass nipple. If you do not have a punch you can dremel or file the bore larger instead, just t...
Insert the piston all the way into the cylinder and mark the depth on the side of the piston. This will allow you to determine how far the piston will...
Its up to you whether or not to turn the handle first or at the same time as the cylinder sleeve. A good handle has a slight curve to it so it doesn't...
Cut a section of wooden broom handle and drill it out with a bit just bigger than the brass nipple. Then, from the other side, drill another hole part...
You'll need to fashion a plug to fill the hole on the bottom and hide the brass cap from sight. Just make sure that you remember to insert the brass t...
You should now have a finished fire piston, now all you need to do is make some char cloth and you can try it out!
Since you'll probably have left over brass rod stock why not make a little jig for installing o-rings. Simply taper a 1" long piece of rod down but no...
1) Make sure your fingers are dry, if the char cloth gets contaminated it won't light well (especially if your fingers have left over vaseline from lu...
Charcloth is relatively easy to make and a crucial ingredient to using your fire piston. Simply take an old cotton shirt, cut it up into squares, then...
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Posted:Aug 28, 2009
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