YouTuber Primitive Technology says, "I made a cord drill and then upgraded it to a pump drill. A cord drill is basically a spindle with a fly wheel attached so it looks like a spinning top. the middle of a piece of cord is then put into a notch at the top of the spindle.
How To Make A Primitive Cord Drill And Pump Drill
Mark Frauenfelder, Boing Boing
Tue, 01/26/2016 - 4:03pm
BING NEWS:
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04/26/2024 - 4:31 am | View Link - More
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