3. Add the vibration motor

If your motor's exposed wire leads are super tiny, use wire strippers to remove some of the insulation. Peel the adhesive backing from the vibration motor and stick the motor to the 3D printed holder inside the round indentation.

Picture of Add the Vibration Motor

Guide the black wire into the channel on the left side of the holder and direct the end of the wire into the centre of the module.

As a finishing touch, bend the stripped wire end upwards. It's this wire end that will make the connection with the NEGATIVE (-) side of the coin battery and this upwards bend ensures good contact.