Robot Dimensions

Create has a diameter of 13" 
Height: 3.75" : 95.25mm
Weight of robot: 8lbs: 3.62873896  
Radius of larger wheel : r :  1.216"
Radius of castor wheel: ro: 0.930"
Weight of larger wheel;
Wieght of castor wheel:
Weight of castor crank: 
Distance between wheels:l:10.469"
Castor offset  : 0.37625"


a+b : 11.6205"/2 = 5.81025"