### Author Topic: HELP NEEDED IN MY ROBOTICS PROJECT (updated) plz read  (Read 2325 times)

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##### HELP NEEDED IN MY ROBOTICS PROJECT (updated) plz read
« on: March 13, 2008, 01:36:57 PM »
Myself Adil from Kerala,Indial.Final year mechanical engineering student. Myself and 4 others have ventured to do a robotics project

The concept is simple fix a wireless camera to the robot which gives a live feed to a java program and to control the robot movement using the keyboard.

We intend to make a robot around 760mm high and 40cm in dia.Its in the form of a cylinder.It weighs around 4.5 kg. its a three wheeled robot wid seperate drives to the back two wheels and a free to rotate front wheel.Rotation of robot is controlled by rotating the back two wheels at different speeds.the wheel layout is like that of a triangle..

THE PROBLEM : could u please suggest what type of motor to use. We used small DC motors in our small projects. But given its weight wat motor i should use. Also please suggest a way in which i can connect the motor to the wheels so that load is less on motor shaft.

LATEST UPDATE ON MY ROBOT (22.03.2008) : input from a few pundits here helped me narrow down on a stepper motor of a holding torque of around .36 kgm. i will be using two of it.. one for each back wheel. what ur opinion about it?? got two back wheels of 4inch diameter. but the back wheels i got have a larger diameter hole at centre then the motor shaft.. i want to connect the motor shaft directly to wheel.. please suggest a method for that.. all help will be truly appreciated...
« Last Edit: March 23, 2008, 12:36:26 PM by adil.eshack »

#### AndrewM

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##### Re: HELP NEEDED IN MY ROBOTICS PROJECT
« Reply #1 on: March 13, 2008, 01:49:30 PM »
Take a look here:  http://www.societyofrobots.com/RMF_calculator.shtml

While you don't have to, you should use a gearbox (or gearhead motor) for your drive wheels which will keep the load off the motor shaft (and also has nice benefits of increased torque, etc)
blog: www.iamwhen.com
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