A robot inspired by a robo character "R2D2" in Star wars. This robot had 2 arms : one with an electromagnet and the other with a gun. the head could rotate , had a flash lamp in the head , could move in any direction , the base was driven with 2, 3 volt toy dc motors with gears (self made).

Movit -2 an arm robot with a gripper hand . This could in move in 360 degrees and could lift objects by holding them . Movit -2 was also interfaced with Sinclair computer to do automated jobs using the LOGO programming language .

Movit - 4 a modified version of  Movit -2 this had an elbow joint and a head made out of View Master to give it decent look.

OPTRIX -the master piece built by me in 12 th Grade .This was indigenously designed and developed exclusively for B.M.Birla Planetarium.

OPTRIX was 5 feet tall.This robot could move in all directions. It contains a multi functional arms. The right arm could move efficiently at its shoulder, elbow, rotate the wrist clockwise and anti clockwise and grip any object with the help of 2 fingers. The robot could be controlled in 3 modes automatic, semi automatic and manual mode. In the semi automatic mode the robot would change its direction on a clap. In the manual  mode the robot is controlled through switches.

Here shown is the Brain of OPTRIX .

A: the relay bank

B: Optical Circuits

C & D the drive system

Here a transparency is used with black tape marked , according to the black tape the optical circuits  activated the relays which in turn drive the motors. 

The robot can be divided into the base, the torso, the control system.

The base supports the whole robot on 4 wheels of which 2 are driven by 12 volt D.C.motors (Maruti wiper wheels) through belts. The base also contains power supply and charging system of the whole machine

The torso also has a tape recorder and speaker which can be switched on according to a program. To make the robot more attractive a head was placed on the torso. This head could move left and right and the lips was synchronized to move according to the recorded message.

The arm can pick up any object from its tray and place it elsewhere. Each movement was driven by a separate motor and these were placed in the torso. All the functions have micro switches at their extremes to provide feedback to the control system