Comments on: Fire by Fire Piston https://survivaltek.com/?p=608 Teaching the Ways and Means to Survive Fri, 19 Sep 2025 19:53:52 -0400 hourly 1 https://wordpress.org/?v=4.1.41 By: Mike https://survivaltek.com/?p=608&cpage=1#comment-565 Mon, 21 Nov 2011 13:29:18 +0000 https://survivaltek.com/?p=702#comment-565 Saw an easy way to make a fire piston with materials from Home Depot. Just a short piece of 1/2 inch copper plumbing and a 1/2 inch copper end cap that can either be epoxied or soldered on to make the body of the piston.

Then a 1/2 inch wood dowel (which is a little less than 1/2 inch) and a wood drawer knob and rubber o-ring or thread to make the rod.

The trick to making the rod is to get the groove for the seal (o-ring or thread) of a very even depth. Do this by chucking the rod in a drill to spin the rod and then use a file to “lathe cut” the groove.

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