Joel_BC
Super Self-Sufficient
Pretty interesting. Very useful for someone who'd want an automatically opening gate where there is no practical way (even solar pv) to introduce electricity into the works.
Have you seen this? It was new to me...
https://www.youtube.com/watch?v=S7WHM2rchJ0
More about the design...
http://makezine.com/2009/10/03/unpowered-mechanical-gate-opener-th/
http://makezine.com/2009/09/28/unpowered-mechanical-gate-opener-pa/
Have you seen this? It was new to me...
https://www.youtube.com/watch?v=S7WHM2rchJ0
More about the design...
http://makezine.com/2009/10/03/unpowered-mechanical-gate-opener-th/
http://makezine.com/2009/09/28/unpowered-mechanical-gate-opener-pa/