[english] selfmade firepiston

[Jeff Wagner]

Ja, but the fewer things than can potentially leak the better. In wood pistons, only two open pores in the grain are enough to cause problems. Gute Nacht.

Perhaps tomorrow I can figure out how to upload photos here.

Here is a wooden piston with O rings


[img]

[Chalk2]

that was my idea a bit more detailed

[Jeff Wagner]

Hi Chalk2 - Good drawing. This is also a very interesting concept. Something to think about in designing the bottom plug - if you have seen my video clips that show the ignition technique you may have noticed the quickness with which the piston is extracted. Once the tinder has been ignited by the downward stroke it is necessary to withdraw it very fast so that it can breath fresh oxygen. If it stays too long inside the closed cylinder it will be extinguished. So the bottom plug will need to be designed for instant removal.

[Chalk2]

at that pictures you see it with 2 quarter-turn threads, think that will seal the piston good enugh for ignition, with the sealing showed in turquoise.
if you want to store it, the vacuum will seal it so it cant get loose.

not sure if that idea has a practical value since its just a idea, i dont have the tools to make one like that, but if anyone makes the haul with it, i accept donations

[/ot]

[Jeff Wagner]

With a gasket as shown by the turquoise color I think it will work.

[Chalk2]

hm,

what actualy came to my mind is: how to make the fire piston fit as knife grip?

think there is a way to do that propper, dont? its just rumoring in my head.

Chalk2

[Jeff Wagner]

I have thought about this actually. It would be easy to make a fire piston insert for a hollow handle survival style knife. Other types of knife design having a tang would be more challenging. One thought would be to incorporate the fire piston into one of the side scales. However I am afraid this might make for too bulky a grip diameter.

Another idea I have contemplated is making a fire piston into the grip of a walking staff. We could also put a compass in the top.

How about a belt buckle...?

[jasper]

if you have seen my video clips that show the ignition technique

Hey Jeff,

where can I see those video clips. Have you published a link here or in a different. Maybe I'm just a littlebit ditsy because of my exam in two hours :wink:

I'm very interested how you exactly light the fire. Got some ideas but aren't sure.

MfG,

Jasper

[Jeff Wagner]

Hey Jasper. I have sent you a private nachrichten. Danke