Precious Plastic
Gears, Pulleys, Links
Motors
Shredder Calculator by AndyN (see forum ‘will it shred‘)
CNC
Youtube Channels
Machining
This Old Tony (Home machine shop)
ClickSpring ( Ancient tool making )
Oxoolco (Tool making and machining)
NYC CNC (CNC, machining, shop tours)
MrPete222 (Classic home shop guy)
The corvette guy (CNC, micro manufacturing)
Projects about plastic & recycling
YouTube.com/rubbishreads (for kids & teens)