[GreenKeys] Setting the Lorenz motor speed.

[Jeffrey D Angus]

Obviously a well stocked junk box and a bit of ingenuity is in order.

Step one, steal the rare earth magnet out of plastic USB cable holder.
Step two, Use a small RF coil out of something for the pick up.

Do the math.
Original speed: 2727.272 RPM (66 WPM)
New speed: 2727.272 - 10% = 2454.545 RPM (60 WPM)
2454.545 / 60 = 40.909 revolutions/second (Hz)
1 / 40.909 = 24.44 mS (period)

Now I did find out the hard way that the magnet sticks out just
far enough to clip the decrease speed lever on the motor. After
I found where it landed I set the speed below the desired range,
stuck the magnet back on, then used the lever in the back to
slowly  increase the speed to what I wanted.

Jeff-1.0
wa6fwi



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