I'm building a motorized equatorial platform for a telescope. It will use a small 12v DC motor and a circuit controller (Kit 67 or Carl's Electronics CK1400). The kit is supplied with a 10k pot. I wish to have greater control of the motor. It has been recommended to use a 100-ohm (finer control) or a 200-ohm (coarse control) pot. I would like have both options available. My question is how should the two pots be wired first to achieve coarse control and to then fine adjust the motor? Ultimately the motor will need to turn at a precise pace.
Thank you
Thank you