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Unread 24-11-2013, 18:01
yash101 yash101 is offline
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Re: Need advice on motors, gearboxes, and ESCs

Quote:
Originally Posted by MichaelBick View Post
You are not accounting for friction. Furthermore, free speed assumes that there is 0 load on your motors. My calculations (MiniCIM on a 10:1) is based on JVN's design calculator which accounts for both of these. Also your calcs are way off because a 6" wheel is actually 18.84 in/rev(1.57ft/rev).
Yeah. Good catch. I do suck at match. The car would be going at 18 miles an hour . You would have to be Usain Bolt to chase that car . Also, my calculations are based off an ideal model, no friction, no heat, 100% efficiency!