Be careful with your terminologies. A permanent magnet is never infinite in its flux density. More over you have seen attempts of permanent magnets being used to create torque; and there is a sticking point called a gate, which stops the motion or tends to apply a braking force; thereby eventually bringing the entire thing to a stop. Magnetic field, and interactions of atoms with magnetic field, conserve energy, therefore no net energy gets created at any point. There is not a lot of energy in the field of even a strong permanent magnet. One could, in principle, construct a 'motor' that would demagnetize the magnets somehow, converting the field energy into motion, but it wouldn't be some effective super energy storage or the like, and would run for some time then stop.energy is not created nor destroyed by his free energy machine. in conventional motor, electromagnetic coils are used to create magnetic field and those coils needs electricity for generating motion. while in his motor, magnets used instead of electromagnetic coils. and magnets don't need electricity. magnet can repel other magnet without input of electricity for infinite time. this type of motor uses magnets in stator and rotor both, which repel each other and generate motion. so, basically energy of magnetic field of permanent magnet is converted into motion. if you say there is no free energy then why magnets repel and attract each other without external input energy.