I have a 24V 68W power supply, and 2 12V 30W motors that I need to power. It is more important that the first motor is at max power all the time and the second is not so important. How do I set this up?
Seeing that you have:
1- 24 volt supply
2- 12 volt motors
You might be tempted to wire the two 12-volt motors in series, but you'll need to make sure that current flow isn't interrupted.
Connect an ohmmeter across the terminals of a motor. Turn the motor shaft very slowly for at least one complete revolution. If at any point you read an open circuit for either motor, you will not be able to wire them in series.