Edge Collective
28. Brass tacks
A focus for appropriate technology.Survival. Prioritization. Combinations and pairings.
I've seen lots of collections and wikis around appropriate technology designs. But where is the systems thinking?
Making a flywheel using bikes and cement https://www.youtube.com/watch?v=TBjuLDIjgkQ
Making a flywheel generator https://www.youtube.com/watch?v=8190KlUQvCo
pedal-powered machines entry on farmhack
15th century grain mill made from wood
DIY grain mill ideas on permies
pedal-powered farms and factories - de decker
pedal-generated electricity is not efficient -- de decker
building a trompe to compress air / water-powered compressed air
each foot can only compress 0.4 psi
victorian dental drill with flywheel
smelting of iron from iron ore:
smelting of iron from iron ore (good explanation of the history):
very nice history of iron making:
misc
really nice series -- how to make everything -- working from history
foot-powered machinery
'foot-powered scroll saw'
vintage scroll saws and lathes
The special term for the foot power is 'treadle'
Nice foot-powered design for drill press:
freewheel treadle design
Freewheel treadle instructable
nice animation of treadle design
can see why freewheel design might have an advantage
google image search on 'treadle design'
treadle-based grain mill design questions in a forum
victorian hand-powered 'post drill'
'post drill' for metal drill mounted on wall
'egg beater drill' -- hand drill
'breast drill' and 'cole drill' for drilling metal out in the field, forum topic