Primitive Technology: Double water bellows

Double water bellows
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About This Video:
I built two water bellows to use in tandem for smelting. Previously I made and tested one water bellow. It was small and was fired in a pit. For this project I made two that had a deeper stroke than the last one. I also fired it in a kiln so it would be stronger. I made a wide based tuyere for the two spouts of the bellows to fit into during use. When one bellow was lifted the other dropped so that a constant but intermittent stream of air entered the fire. The bellows worked well initially but then the handle came off one. So I attached wooden handles to both and they were easier to operate. I got about 2 hours of use and then the spout broke off one. This was probably due to a low firing temperature in the kiln, I could fix that problem the next time I do a firing by adding fewer layers of bricks in the bottom of the kiln. Also, the design could be modified to make the spout stronger.

00:00- 03:13 Make new water bellows
03:13- 06:45 Making bricks
06:45-10:13 Firing bellows and bricks
10:13- 12:11 Bellows valves
12:11- 13:06 Bricks and ash pellets
13:06- 14:47 Setting up bellows
14:47- 19:44 Testing Bellows

About Primitive Technology:
Primitive technology is a hobby where you build things in the wild completely from scratch using no modern tools or materials. These are the strict rules: If you want a fire, use a fire stick - An axe, pick up a stone and shape it - A hut, build one from trees, mud, rocks etc. The challenge is seeing how far you can go without utilizing modern technology. I do not live in the wild, but enjoy building shelter, tools, and more, only utilizing natural materials. To find specific videos, visit my playlist tab for building videos focused on pyrotechnology, shelter, weapons, food & agriculture, tools & machines, and weaving & fiber.

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