The file 'Three Finger Gripper 3D Printer Model' is (stl) file type, size is 1.5MB.
This is the first version of the gripper for my robot arm project.
I used 3mm carbon fiber rods as shaft. They are cheap easy to cut, strong and light.
The motors are 16mm DC geared motors with 180 rmp anything from 100-200 should work fine. They are also quite cheap.
To improve the grip I used some rubber foam (in german Mosgummi).
You can find all about this project at the hackaday.io project page:
http://hackaday.io/project/3800-3d-printable-robot-arm
or direct at my blog: www.chaozlabs.de
and of course my YouTube channel:
https://www.youtube.com/channel/UCeFKz1UJUd5YuxS1ZikqYwA
I added the cad files to github:
https://github.com/4ndreas/BetaBots-Robot-Arm-Project/tree/master/ThreeFingerGripper
FingerL.stl | 1.6MB | |
FingerM.stl | 1.5MB | |
FingerR.stl | 1.6MB |