Just a short and sweet guide to help people with brushed motors. These 5 tips will really help your motors last longer.
Mounting New Motors
MAKE SURE THAT YOUR PROP IS MOUNTED CORRECTLY AND NONE OF THE PROP SHAFT IS VISIBLE – this is by far and away the most common cause of pre-mature motor failure.
Please reference Dave Wood’s video to see why this is so important:
If your props do not sit flush against the can, you drill them out with a #62 wire gauge drill bit.
DO NOT PUSH FORCEFULLY ONTO THE PROP SHAFT WHEN MOUNTING PROPS OR MOTORS – the bottom caps (the plastic bottom piece where the motor wires enter the can) are easily dislodged from the motors and this will instantly ruin the motor. Once the bottom cap has popped out, there is no way to fix the motor. You may get the motor to spin again, but it will be much less powerful. Always support the end cap when mounting props and do not push very forcefully on the shaft.
Time to Fly!
Here are a few top tips to ensure your flying goes as smooth as possible:
DO NOT APPLY THROTTLE WHEN THE PROPS CANNOT SPIN – if you land in tall grass or are pinned up against a wall, do not apply throttle. Giving lots of throttle when the props are obstructed will burn out a brushed motor in a matter of seconds. You want to make sure that you take off from a smooth surface and that the motors/props are always free from obstruction.
CHECK BETWEEN YOUR MOTOR AND PROP FOR HAIR/DEBRIS – This is especially important if you live with animals or people with long hair. Just a single hair wrapped up on the prop shaft can significantly increase drag on the motors and slow down the quad. If you land in a dark corner behind a couch, be sure to check for debris caught on the prop shaft.
CHECK THE TEMPERATURE OF YOUR MOTORS - This is mainly important if you are using high speed (KV) motors. You do not want to let your motors get so hot that you can not touch them. If they exceed 130-140F (55-60C), you are causing damage to the magnets and shortening the life of the motors. If you find this to be happening to you, you want to lower the weight of your quad and also possibly lower your PID rates if you are using a programmable FC. It is fine for motors to get warm, but they should not get exceedingly hot. If you are flying aggressively and warming up the motors, let them cool a bit (2 minutes) between flights. This will help ensure that the motors stay within the safe temperature range.