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Mechanical, electronic or programmatic design of a robot.

8 votes

Is it better to have batteries distributed at the rotors or the center of the multicopter?

Center, you want the moment of inertia to be as small as possible.
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4 votes

Effectiveness of a Mobile Robot In Relation To Mass

http://en.wikipedia.org/wiki/Square-cube_law The square-cube law essentially states that larger robots are more fragile. "You can drop a mouse down a thousand-yard mine shaft and, on arriving a …
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10 votes

Why are quadcopters more common in robotics than other configurations?

You need 4 degrees of freedom to control yaw, pitch, roll and thrust. Four props is therefore the minimum number of actuators required. Tricoptors require a servo to tilt one or more rotors which is …
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7 votes

Calculating the efficiency of Mecanum wheels

I have some experience with using mecanum wheels, both indoors and outdoors (on grass, sand and dirt no less). Obvious advantage is holonomic movement. Disadvantages are weight (commercially availab …
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