https://blog.chriscarini.com/2010/03/most-useless-machine.html
First, let me start by saying that the idea was not mine at all, and the instructions can be found over at Instructables ! Ever since th...
the mostuseless machinechris
https://hackaday.com/2012/11/02/pull-string-most-useless-machine/
The mechanical simplicity of this pull-string controlled most useless machine is delightful. You can see the metal gripper which is reaching up to tug on a...
pull stringuseless machinehackaday