Electric machine design tools
for students & builders
Browser-based engineering calculators for permanent magnets, electrical steel, DC motors, and synchronous drives — no installation required.
Launch the Design Lab →Permanent Magnets
Browse a curated library of NdFeB and other permanent magnet grades. View demagnetisation B-H curves, compare remanence, coercivity, and energy product side-by-side, and convert between SI and CGS units.
Open tool →Electrical Steel
Explore core loss and permeability data for electrical steel grades from SURA, Thyssenkrupp, and Voestalpine. Compare grades at different flux densities and frequencies with interactive charts.
Open tool →Winding Analysis
Design and analyse three-phase AC windings for integer-slot, fractional-slot, and tooth-coil configurations. Visualise conductor layout, winding factor spectrum, MMF harmonics, and star-of-slots diagram. Compare multiple configurations side-by-side.
Open tool →DC Motor WIP
Analyse the steady-state performance of brushed DC motors: torque, speed, current, and efficiency across operating conditions. A practical starting point for robotics actuator sizing.
Open tool →PMSM WIP
Model surface permanent magnet synchronous motors: interactive equivalent circuits, phasor diagrams, torque–speed curves, and an efficiency map tool for sizing and performance analysis.
Open tool →