2. Prepare tools: You will need some basic tools to make permanent magnets, such as files, pliers, hammers, and sanders. You also need a stable power supply and a magnetic field tester to test the magnetic field of the permanent magnet you make.
3. Make the magnet: Cut the selected magnetic material into the desired shape and size. You can use a drill and grinder to cut and sand the material. Then, the magnet is heated in a high-temperature oven and then cooled quickly, which helps to improve the magnetic properties of the material.
4. Build the poles: Place the magnet between two metal sheets so that there is a gap between the magnet and the metal sheets. The metal sheets should be larger than the size of the magnet so that they can act as poles for the magnet and enhance the strength of the magnetic field.
5. Test the magnet: Use a magnetic field tester to test the strength and direction of the magnetic field of the magnet you have made. If you need stronger magnetic force, you can stack multiple magnets together to increase the magnetic field strength. Note that making permanent magnets requires specific skills and tools. If you do not have the relevant experience and skills, please do not attempt to make your own permanent magnets as it may cause danger or damage to your equipment.