Every electric motor is different. Some work better at high speeds, others at low speeds. Some work better under heavy loads, while others are more efficient driving lightweight loads. Finding the right electric motor for your motorized project can be difficult. Some people find it easier to make their own. This is possible to do with no specialized parts and little training. Even the permanent magnets that make the motors run can be made at home with little effort.
Instructions
1．Set the grill up according to manufacturer's instructions. Fill it up with charcoal and light it using the long lighter. Make sure that the bucket of water is nearby in case the metal needs to be rapidly cooled or a fire needs to be put out. Put on the safety goggles and leather gloves.
2..Place the metal on the grill over the hottest part of the charcoal using the tongs. Let the grill heat up as much as possible. Once it reaches its peak heat, light the torch and apply its flame evenly to the metal. Heat it with the torch for a few minutes. Turn off the flame on the torch when finished.
3.Pick up the hot metal with the tongs. Hold the neodymium magnet in one hand. Stroke the metal bar with it. Always stroke it in the same direction and lift the neodymium magnet well away from it once it reaches the end. Never move the magnet back and forth over the bar, this will ruin the magnetizing process. Keep stroking it as it cools to the ambient temperature . Once it has, it will be a powerful permanent magnet suitable for use in an electric motor.

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