OT firepiston metal content some were made of brass

Anyone here made a working firespiston?
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've tried a couple times but never got anywhere.
Karl
Reply to
Karl Vorwerk
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I have. Metal is not a good material because it sucks the heat out of the air. Materials of lower thermal conductivity work better. I used a hard plastic screwdriver handle from the surplus store.
The trick is in the tinder. The websites give some good tips.
Reply to
Don Foreman

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