Scribbling Robot | Hindi
Channel: Arvind Gupta
Date: 19/10/2016

The Scribbling Robot is a terrific toy. The table has 4 sketch pens as legs and an offset motor is mounted on it. The model slowly spins and the sketch pens scribble a circular pattern on the ground. To make this you will need an acrylic base, 3-volt battery pack, toy motor, rubber piece and four sketch pens. Here the battery pack and the motor are mounted on the acrylic rectangle which has 4 holes in the corners for the sketch pens.
First place two 1.5-volt batteries in the battery holder. The wires of the motor are connected to the batteries. Then a 5-cm long rubber piece is inserted in the motor shaft. The rubber piece is mounted off-center. It creates vibrations and makes the whole platform spin in jerks. Then press fit all four color sketch pens in the corners of the board. They should be glued to the same height.
Now place the four pens on a large piece of paper and switch the motor ON. The motor will spin and its off-center shaft will vibrate the platform. The platform will slowly spin in a circular pattern and the sketch pens will draw delightful patterns. 

This work is supported by IUCAA (www.iucaa.in) and TATA Trust (http://www.tatatrusts.org/) and (www.tata.com/aboutus/sub_index/Tata-trusts)

TATA Trust: Education is one of the key focus areas for Tata Trusts, aiming towards enabling access of quality education to the underprivileged population in India. To facilitate quality in teaching and learning of Science education through workshops, capacity building and resource creation, Tata Trusts have been supporting Muktangan Vigyan Shodhika (MVS), IUCAA's Children’s Science Centre, since inception. To know more about other initiatives of Tata Trusts, please visit www.tatatrusts.org

Credits:,Ashok Rupner, Manish Jain, Pradnya Pujari, Shivaji Mane, Jyoti Hiremath, Arvind Gupta