Mike Mane wrote:
> Anyway, the tank is powered by two 9VDC gear-motors, and I would like
> to be able to control the trim of these engines to ensure equilibrium.
> Can this be done with a potentiometer on each circuit? If so, what
> kind of pot and how are they installed?
Yes, it can be done, but you'll need to describe the motors a little
more in order to determine the proper size pot. Specifically how much
current does each motor draw when running under load? We need that
information in order to determine the max wattage rating needed for the
resistor.
Of course, using resistance to decrease the voltage generates heat
(that's where the unused energy goes) and is therefore not a very
efficient way to go. You'd be better off going with an inexpensive
manual speed control. Here again, if we know the current draw for each
motor we can recommend an appropriate model. I've used manual speed
controls for the rotate/elevate motors in the Brumbar and now the
Navarrone Gun with great results.
Frank P.
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