Monday, 3 October 2016

The hand

Mini Robot Hand

Open hand


Closed hand

 Hand on Hand

The hand is all metal and is fully ball raced. A single RC servo controls the hand's functions. Clockwise rotation closes the four fingers. Anti-clockwise rotation pulls in the thumb and closes the whole hand. The hand is made mostly of Aluminium with some brass tubing. Multifilament is used for the tendons.
A figure 8 pulley system wraps around the bearings, links the two joints for each finger.
The 12 bearings are 5x2x2mm
The servo is Turnigy TGY-306G-HV. Servo range extended to about 200degrees by adding 1K resistors on either side of the servo potentiometer
Size: 77mm long, 34mm wide (excluding thumb), 15mm high - Finger length 30mm

Operating the hand


Grasping a AA battery

1 comment:

  1. hi,Great work, I would like to know in addition to fixed 2 actions, but also to make other actions?(Rock-Paper-Scissors),email:sundayonly#gmail.com(#Replaced@)

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