Primitive Technology: Cord drill and Pump drill
Why Hacker News recommends it
HN people link it as a satisfying demonstration of hand-powered drills being made from nothing.
What it is
Primitive Technology shows building a cord drill from scratch and then upgrading it to a pump drill, using only primitive materials like a stone flywheel and cord.
Recommended by 3 HN commenters across 3 different months, 2016 to 2018.
What Hacker News said
Strong rec lazysheepherd · 2018-06 · on “Yam, cultivate and cook”
I definitely agree. I think this is the video you mentioned. I have watched it myself many times as well. "Primitive Technology: Cord drill and Pump drill" > [this video]
Recommends furyg3 · 2016-01 · on “Hand powered drilling tools and machines (2010)”
The guy over at the primitive technology vlog on YouTube just added a neat video of himself making a cord drill and a pump drill. [this video]
Recommends oakesm9 · 2017-08 · on “Hand powered drilling tools and machines”
If you're interested in seeing someone make these take a look at this Primitive Technology video and the others he produces: [this video] Make sure you turn on captions to see descriptions of what's going on.
Cites agumonkey · 2016-02 · on “Making Charcoal [video]”
Oh the title sounds familiar, on the other hand no talk in mind .. great. ps: his fire starting example reminded me of this, [this video] (no supermarket involved though)