Making Your Own Fire Piston from a Few Simple Parts

I have always wanted a fire piston, but have never gotten around to buying one.

Here’s a quick and easy DIY version that uses little more than a 5″ long piece of copper pipe and end cap (1/2″ Dia.), 1/2″ wooden dowel, an O-ring (9/16″ O.D., 3/8″ I.D), and a wooden knob.

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• Source: https://blog.adafruit.com/2023/01/24/making-your-own-fire-piston-from-a-few-simple-parts/