Oh, with a multimeter this is simple!

With the gearmotor unloaded and set to full voltage, you should see around 5.5RPM. One thing - because PWM is used to control motor voltage, it will always appear as ~12v to the multimeter.

Next, go full CCW on CC until you hear the click, disconnect the motor, connect the terminals for the multimeter. Set the meter to the 10A setting. Connect the meter terminals where the motor was. This will apply a short on the output of the motor. You can then adjust CC in the CW direction until you see 1.5 amps - this should be about 6 turns past the “0” point.

You can then reconnect the motor, and should be all set.

I’m happy to help.

The CV pot may not have the little detent inside, or it may be smaller than normal. If you start rotating CW 15-20 turns from where you are now, you should be at full voltage.

I believe you can go counterclockwise many times past the click, and still be at 0.

They are endless turn pots, so you can’t break them by turning too far. No harm, no foul.

It is possible the LED color has changed since I wrote the instructions, in which case I’ll revise them. Is the motor turning at all for you?

I was turning the CV adjustment counterclockwise, waiting to hear a click, and never hearing it.

I got bored and decided to work on the CC adjustment for a while, and heard the click right away. It's very soft, and you can turn past the click easily. When turning clockwise, you don't hear the click at all.

I was expecting the adjustment screw to actually stop when it was turned far enough. Now I don't know what to do. Have I turned it too far? Is that possible?

I am worried that I'll need to turn the CV adjustment clockwise it for a long time to be sure I have passed the click, then go counterclockwise again until I hear it.