How to make a 5 kg war bot for Robo sumo( part 1) .....

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 If you are want to make a 5 kg sumo robot for Robo war then you must have to follow some theory. I am telling you the right theory behind those bot's, and with out this theory you are not able to understand that how much power and torque will required to operate your bot. 1. Circumferential Velocity Calculation: If you are think that at first you chose the motor and then you will find wheels for your Bot, then my friend your idea is totally wrong. At first chose your  Bot's wheel then calculate the circumferential velocity. Now, usually in most of cases we are using 2 or 3 inch wheel for our 5 kg war bot. Consider 3 inch wheel and we will get the Circumference is 0.235 metre. Remember this one you have to convert those units in SI. And suppose consider your motor's RPM is 300. Now, Circumferential Velocity of your bot is Vs= (π * D *N)/60 ;        (π * D) is  Circumference of wheel                                                                               =(0.235*300)/
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TATA HEXA pull a Boeing 737-800 aircraft. Science behind this video

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In this video you can see TATA HEXA pull a Boeing 737-800 aircraft and this video is real. There is a very clever marketing idea behind this video. But how could a car pull a 41,410 kg aircraft, their is a brilliant science behind this.
 Now just calculate how much pulling force is required to pull a 41,410 kg aircraft=41410*0.015
=621.15 kg only because the rolling frictional coefficient of plane tires and runway is 0.015 only.

Then calculate the pulling force of 2280 kg HEXA =2280*0.7*0.4=638.4 kg because the sliding frictional coefficient of the car tires is 0.7 and suppose the car is real wheel drive car and the weight distributed nearly 60% front (the engine mounted on the front of the car) and 40% back of this car (that's why 0.4 comes out). The car is also available on the 4WD segment.

Now this is very easier to understand 638.4 kg is bigger than 621.15 kg , that's why the TATA HEXA pull a Boeing 737-800 aircraft.      

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How to make a 5 kg war bot for Robo sumo( part 1) .....

-
Image
 If you are want to make a 5 kg sumo robot for Robo war then you must have to follow some theory. I am telling you the right theory behind those bot's, and with out this theory you are not able to understand that how much power and torque will required to operate your bot. 1. Circumferential Velocity Calculation: If you are think that at first you chose the motor and then you will find wheels for your Bot, then my friend your idea is totally wrong. At first chose your  Bot's wheel then calculate the circumferential velocity. Now, usually in most of cases we are using 2 or 3 inch wheel for our 5 kg war bot. Consider 3 inch wheel and we will get the Circumference is 0.235 metre. Remember this one you have to convert those units in SI. And suppose consider your motor's RPM is 300. Now, Circumferential Velocity of your bot is Vs= (π * D *N)/60 ;        (π * D) is  Circumference of wheel                                                                               =(0.235*300)/
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