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Primitive Technology: Water Hammer

 
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I follow the Primitive Technology guy on YouTube.  His latest video (as of this writing) shows him making a stream-powered automatic hammer.

If you haven't seen them, his videos are wordless instructionals for building things by hand from materials sourced EXTREMELY locally.  Take a look:

https://www.youtube.com/watch?v=i9TdoO2OVaA

 
I didn't do it. You can't prove it. Nobody saw me. The sheep are lying! This tiny ad is my witness!
rocket mass heater jamboree 2026
https://permies.com/t/369866/rocket-mass-heater-jamboree
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