15-DOF MOTION MIMICKING ROBOTIC ARM | TECH EXPO '14

FEBRUARY-MARCH 2014 | ZINE LAB | MNIT JAIPUR

ABOUT THE EVENT

The event Tech-Expo was a student innovation contest organised at MNIT JAIPUR during its anual Techno-Cultural Fest - BLitzschalg '14. The objective was to propose an engineering solution to any existing world problem or assist the same.

OBJECTIVE

Building a robotic arm capable of replicating the motion of human arm using a sensor powered pair of gloves

RESEARCH ASPECTS

  Used adaptive local minima and maxima algorithm to map flex sensor and artifical arm motion that accounted for the erratic nature of the flex sensor
  2.2" Flex sensors used for sensing the movement of the fingers
  Low torque servo motors for actuation of the fingers of the artificial robotic arm
  Setup has 15 degrees of freedom with all the 3 joints of an individual finger steered by a single actuator using wire for power transmission
  Processing done via Arduino micro-controller

METHODOLOGY

The arm was designed just as a human arm with fingers and the palm. The fingers were powered using low power servo motors and had an actuated wrist as well. The arm was controlled using a glove with flex sensors that could map the motion of the finger to that of the motion of the fingers of the artificial robotic arm using a micro-controller based decision-making system

RESULTS

  The setup had mediocre efficiency and performance
  Won the runners up prize for our innovative Robotic Arm in Tech-Expo '14 as a freshman
  Renovated the design with better 3D printed parts for efficient and better performance

GALLERY




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