We propose a magnet simulator (named “MagTetris”) for fast calculation of both magnetic field and magnetic force generated by multiple cuboid magnets in arbitrary configurations. The accuracy of “MagTetris” is examined by comparing the calculated results to the FEM-based simulations and the experimental results through a 2-magnet experiment. The average differences between the FEM-based simulations and the “MagTetris” calculations are within 6% for field and 2% for force, while those between the measurements and the “MagTetris” are within 10% for field and 4.5% for force. For the calculation speed, “MagTetris” is 123 times faster compared to the FEM-based commercial software.
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