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| Building a Fire Piston - by Craynerd |
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| raynerd:
Doug - that is the youtube video I was trying to find again to post on here!! It really is amazing isn`t it. That is an excellent size and works much better than mine. I think the piston is too big on mine at 10mm dia. Quite a bit of force is needed to generate the heat required hence me having to slam it on the floor rather than just in my hands. I`ve just been taking another look at my fire piston again and I can`t get cotton wool to ignite. When I pull out the piston the cotton wool is all singed, so clearly it is near but not quite enough heat is being generated. That being said, I just blew a lit piece of char cloth on the my cotton wool and it would even spread into it, so maybe the cotton wool is no good!?? :coffee: Madjack - it is interesting how long this method has apparently been used. Great story! I have to be honest, I of course had to oblige the fire lighting gods and try and make a fire from my glowing char cloth ember - still no luck!! I`m obviously not cut out to be a boy scout :( :doh: |
| BillTodd:
--- Quote ---Bill, what do you mean by a cylinder head; how would this be fitted? --- End quote --- By head, I just mean the capping at the end of the cylinder. I was thinking machinable ceramic like Bonzo's(forget the name, sorry) lodge spark plug (either here or on the HMEM site) |
| spuddevans:
Well this is a very neat little project, I think I have found my next project :proj: Thanks very much for sharing Chris :thumbup: Tim |
| j45on:
Thanks for sharing Chris I had never seen one before :thumbup: I shall have to add this to my :proj: list :nrocks: |
| Blade:
I have a fire piston I built using 5/16" steel rod and a piece of tube that it fit in which I capped on the end with an aluminum plug. I like yours with the storage cap for the char, that is genius. One change I made on mine was to use a slot through the hole on the end of the piston, it makes taking the char out much easier. Never had any luck with regular cotton either. Thanks for sharing. |
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