![extract](https://www.robives.com/wp-content/uploads/2016/06/rat-a200_1.jpg)
ratchet
![extract](https://www.robives.com/wp-content/uploads/2016/06/rat-a200_1.jpg)
![extract](https://www.robives.com/wp-content/uploads/2016/06/pyramid-a200_0.jpg)
![extract](https://www.robives.com/wp-content/uploads/2016/06/doublerat-f200_0.jpg)
![extract](https://www.robives.com/wp-content/uploads/2016/06/doublerat-e200.jpg)
![extract](https://www.robives.com/wp-content/uploads/2016/06/doublerat-d200.jpg)
Bi-directional Ratchet Prototype on YouTube
A mechanism for mechanism's sake. I have put together the
![extract](https://www.robives.com/wp-content/uploads/2016/06/doublerat-c200.jpg)
Double ratchet, working prototype
Almost done. I've made up a working prototype. I'm happy
![extract](https://www.robives.com/wp-content/uploads/2016/06/doublerat-b200.jpg)
Double ratchet, changing the structure and layout
I've been thinking of a few different ways of laying
![extract](https://www.robives.com/wp-content/uploads/2016/06/linkage-a200.jpg)
Linking two ratchets together using a bell crank.
After experimenting with a couple of different ways of connecting
![extract](https://www.robives.com/wp-content/uploads/2016/06/doublerat-a200.jpg)
Double Ratchet experimental design
Ratchets are interesting mechanisms I'm sure you'll agree, I like
![bird-j200.jpg](https://www.robives.com/wp-content/uploads/2016/06/bird-j200.jpg)