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RE: Making a robotic hand 1 : my first attempt at a robothand
My InMoov robot uses also a similar technique for his hands. My problem with those cords is that it is not so reliable as I would like to have it.
I always think about designing a hand for him that doesn’t need cord to move the fingers. It’s more reliable when it would be gears between the segments somehow but I didn’t had a good idea how to do this yet.
I think the pros of using gears is better control and precision, maybe added strength too. The pros of strings are that you get an automatic load-sharing between the joints of the fingers when gripping. That goes a long way. If you went for the more exact gear solution you would loose that (or at least I cannot imagine how). The real reason is of course that it is much easier to make.