ibot Club

ibot Club

!bot Roboliterate Program

• !bot is launching Roboliterate program for all IITM students.

• Attend all !bot sessions, workshops, lectures and get certified as !bot Level 1 robotdeveloper/Roboliterate.

• Do a summer project under !bot and reach Level 2 and it goes on.

• Fill in your name and roll-number in the sheet that is passing around.

• NO PROXY PLEASE :P

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What do you think is a Robot ???

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ROBOTICS

Manual Robotics

AutonomousRobotics

What will we learn today?

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We’ll learn to make a simple remote

controlled robot which can be made to move in any

desired direction

Build Your Basic Bot

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Differential Drive System

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Differential Drive System

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Tools Required

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• Hacksaw / Jigsaw• Hand drill / Power drill• Spanners• Pliers• Screwdriver• Wire Stripper

Materials Required

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• Wood• Nuts and bolts• Motors• Wheels• Clamps & flanges• Batteries• Wires• Switches

Basic Structure

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• Wood (Easiest material to work with)• Acrylic • Aluminium • Simplest shape to cut : Rectangular

Motor

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• Electromechanical devices which converts EE into ME

• Two terminals• Can rotate in both directions• Main Specifications: • RPM (Rotations per minute) • Torque (kgcm)• Voltage (V)

Motor Parts

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GEAR BOX MOTOR SHAFT

• Shaft: It is where we attach wheel or an other mechanism

• Gearbox: This is to reduce the basic rpm of the motor to the desired one.

• Motor: High RPM motor which is then reduced using gearbox.

Wheels

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• Normal Wheels• Omni Wheels

Fixing motor to wheel

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Clamping motor-wheel to chasis

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• ‘C’ clamps• ‘U’ clamps• ‘L’ clamps• Special clamps

Clamping motor-wheel to chasis

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Clamping motor-wheel to chasis

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Fixing of a castor wheel

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• Align castor such that chassis remains parallel to the ground.

Fixing of a castor wheel

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How does the bot look like

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How does the bot look?

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Why 3 wheels and not 4 wheels?

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• To define a plane uniquely, you require atleast 3 points, but if we have 4 points we need to make sure that all the four points lie in a plane.

• Hence, 3 is the preferred choice. We need suspensions incase of 4 wheels

Placement of battery

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• Make sure Center of Gravity remains as low as possible.

• Lead acid, LiPO(Lithium Polymer), Ni-Mh

Motor Control

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• DPDT ( Double Pole Double Throw ) switches controls each motor.

Cost Estimate

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How to get involved?

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• Techsoc: Manual & Line-follower

• Make your own remote controlled robot.

• Involve yourself with seniors who are into robotics

• Volunteer for ongoing projects in CFI.

• Tech fests of other colleges and institutions

Basic Manual Robotics Workshop

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• A workshop which is the hands-on version of today’s session

• Make your own remote controlled robot.

• On 22/09/2013 2:30PM @CFI

• A highly subsidized workshop for all IITM students at just 250 INR.

• Bring to reality what you have learnt today.

Shops in Chennai

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• Ritchie street (Electronics Market): • Modi electronics, Ajanta Electronics • How to reach • 23C from Main Gate • 5C from Taramani • Train to Chintadripet from Kasturibai nagar

• Parrys (Hardware Market): • For materials: Chanels, clamps, tools etc. • How to reach • 5C from Taramani • Train to Chennai Beach from Kasturibai nagar

Reference Sites

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• www.howstuffworks.com• www.societyforrobots.com• www.robokits.com• www.thinklabs.com• www.rhydolabz.com• www.sparkfun.com• www.digikey.in• www.nexrobotics.com• www.frugal-labs.com

Contact Details

ibot Club

• Anil Prasad R 9600151182• Kalyan Vasudev 9600091895

You can mail us at ibot.iitm@gmail.com if you have any queries…