any suggestion before 3d printing my new robot hand ?
http://www.youtube.com/watch?v=LmlrMz3rcrY
Add 2 more fingers.
@Anatoly_Makarevich
why not 10 fingers ?
Obviously 10 is 2 times more then needed.
What this hand is intended for?
Are you going to use it with common instruments? Or are there a limited number of things it should grab?
Or is it just for fun?
@Anatoly_Makarevich
for fun and planning to bluid my own robot. it’s just a start
From my inexperienced point of view this is a great start. It seems it could do a lot of basic movements a human hand can do.
But if your primary goal is just to have some fun it’s hard to comment. My fun is different from yours 
@Anatoly_Makarevich thanks man . no fun no gain 