Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: animeunplugged on June 09, 2010, 02:58:37 PM

Title: need help with making human like robotic hand!!!
Post by: animeunplugged on June 09, 2010, 02:58:37 PM
A tutorials,video,info,or parts list would really help!!! ;D
Title: Re: need help with making human like robotic hand!!!
Post by: animeunplugged on June 09, 2010, 03:12:18 PM
something like this Mechanical hand (http://www.youtube.com/watch?v=KmERU5bPdaA&feature=player_embedded#)
But what would i need to get to make a hand like the one in that video?
Title: Re: need help with making human like robotic hand!!!
Post by: The Big B on June 10, 2010, 09:01:52 AM
This is a very complex task which you are trying to carry out but has the potential to be something amazing. I presume you want to try to replicate the human hand as best as possible however I suggest you simplify your design for your first attempt to minimize the complexity.

I would simplify as follows:
1. Treat the palm as a solid platform, a human hand can curve in the middle but for starters it would be easier remove this motion.
2. Each finger has 2 rotational DOF's where they meet the hand, to simplify this fix one of these DOF's on each digit (including the thumb) so that the hand can make a fist.
3. You should now have a hand with hinged joints only, to control these I suggest you use a cable mechanism with a rack and pinion to control them. This should give you some degree of accuracy.

Does that help at all?
Title: Re: need help with making human like robotic hand!!!
Post by: animeunplugged on June 10, 2010, 09:14:46 PM
This is a very complex task which you are trying to carry out but has the potential to be something amazing. I presume you want to try to replicate the human hand as best as possible however I suggest you simplify your design for your first attempt to minimize the complexity.

I would simplify as follows:
1. Treat the palm as a solid platform, a human hand can curve in the middle but for starters it would be easier remove this motion.
2. Each finger has 2 rotational DOF's where they meet the hand, to simplify this fix one of these DOF's on each digit (including the thumb) so that the hand can make a fist.
3. You should now have a hand with hinged joints only, to control these I suggest you use a cable mechanism with a rack and pinion to control them. This should give you some degree of accuracy.

Does that help at all?
yes it does thank you so much!!!