I'm playing around with modifying a small toy train motor (from the Lego trains, if you care). Inside the plastic box, there's a basic toy motor. It's running on 9V from batteries, with speed controlled by PWM from the control box. And of course, just reversing the polarity to go in reverse.
For my usage, I need to switch the polarity on the motor - I planned to just swap the wires. when I got inside the box though, there's a small cap in series with the motor. I assume that's to reduce EMI? Does it matter which side of the motor it's on - there's not much space to work with, so I plan to just unsolder the wires from the motor, cross them, and solder back on, leaving the cap where it is, so it'd be connected to the other side of the motor.
For my usage, I need to switch the polarity on the motor - I planned to just swap the wires. when I got inside the box though, there's a small cap in series with the motor. I assume that's to reduce EMI? Does it matter which side of the motor it's on - there's not much space to work with, so I plan to just unsolder the wires from the motor, cross them, and solder back on, leaving the cap where it is, so it'd be connected to the other side of the motor.