This will allow you to easily tell which direction the shaft is turning.
If the motor does not turn, it’s possible that your battery is not sufficiently powerful to run the motor. Try a battery with a higher voltage. Similarly, if the motor is turning faster than you want it to, try a lower voltage. Note that a battery which is too powerful can cause your motor coils to melt. [7] X Research source It’s a good idea to check the rating on your motor before you start hooking up batteries.
If the motor does not turn in the opposite direction, it may be that the motor you have selected is not suitable. While most DC motors are easily reversible, some are not.
A switch which is not rated highly enough may melt as a result of having too much electricity sent through it.
You’ll need one color for the positive terminal of the battery, one for the negative battery terminal, one for the positive terminal of the motor, and one for the negative terminal. [9] X Research source
After firmly attaching the first wire, take a small piece of wire of the same color (e. g. white), and run it from the top-left terminal, where you’ve just attached your battery wire, to the bottom-right terminal of the switch. Attach with solder. [10] X Research source
Then, take small piece of wire of the same color, and run it from the bottom-left terminal, where you’ve just attached your battery wire, to the top-right terminal of the switch. Attach with solder. [11] X Research source
For example, if your remaining wires are yellow and blue, attach a yellow wire to the center-left terminal and a blue wire to the center-right terminal.
The wire attached to the center-left terminal of the switch should be attached to the positive terminal of the motor, the wire attached to the center-right terminal of the switch to the negative. [12] X Research source Before proceeding any further, make sure the switch is in the central (off) position. Otherwise you may give yourself a shock or burn when hooking up to the battery.
Depending on your battery, you may be able to wrap the ends around your terminals, or you may have to simply press them against the ends. Attach the ends of the wires to the battery terminals using electrical tape. Do not leave any of the wiring exposed, as it may become hot while in use.
If you find that the up down positions of the switch makes the motor move in directions opposite to what you would prefer, simply re-orient the switch, or you can switch the wire connections to either the battery or motor terminals. [13] X Research source Don’t switch both the motor and battery terminals, or you’ll be right back where you started!
