Dear EE community,
For a friend that is paralysed in his underarms and hands, I wish to create 2 extra fingers, controlled by pressure sensors under his (very skilled) toes, so he can touch/push/grip. Much like the 2nd thumb project
Can someone give me hints about the right type of motors to use?
I would use the principle of motors winding a pull cable, and not so strong elastics to pull the fingers back straight when the motor is inactive. The finger motors should ideally be strong enough to grasp and lift about 2 kilograms, and this means that most of the time, they will be either off, or stalled in 'tight grip' mode. The motors should be able to handle being pushed in their opposite direction even when trying to wind the cable, for safety and since this will definitely happen with normal limbs.
They should ideally also be small and lightweight.
Which type of motors would be best suited, and why?
Links to similar projects or questions are very welcome too
Thanks a lot for your help!
For a friend that is paralysed in his underarms and hands, I wish to create 2 extra fingers, controlled by pressure sensors under his (very skilled) toes, so he can touch/push/grip. Much like the 2nd thumb project
I would use the principle of motors winding a pull cable, and not so strong elastics to pull the fingers back straight when the motor is inactive. The finger motors should ideally be strong enough to grasp and lift about 2 kilograms, and this means that most of the time, they will be either off, or stalled in 'tight grip' mode. The motors should be able to handle being pushed in their opposite direction even when trying to wind the cable, for safety and since this will definitely happen with normal limbs.
They should ideally also be small and lightweight.
Which type of motors would be best suited, and why?
Links to similar projects or questions are very welcome too
Thanks a lot for your help!