As we all know, one the endearing qualities of LEGO robotics is its inherent imprecision.
As good as the NXT motors are (and other components), they are, at their core, basic DC motors with gears. All of our motors (about 20 of them) all work slightly differently in terms of acceleration, power, braking, etc.
Yet it is essential that your motors (particularly paired driving motors) be as close as possible in performance specs.
So how do you do this without torque gauges, tachometers, etc.? Leu Beach, one of our new mentors, along with our programmers, Jonathan, Doug, Nate, and Cole, came up with the most amazing, simple, calibration system ever.
It took us about 15 minutes to test all our motors. The resultant matched set vastly improved the robots directional consistency and performance.
Read to be amazed? Read on....