MechBus

MechBus is a mechanical gear design workspace for building and checking simple gear systems on iPhone and iPad. Create a live meshing pair, adjust module and tooth counts, change pressure angle, and watch the geometry update as you work. Use the ratio solver to find practical tooth-count pairs for a target ratio, then apply a result directly to the Studio. Build gear trains, inspect output speed, compare direction changes, and review torque and speed behavior with a clear visual chart. Explore common mechanisms including planetary sets, rack and pinion, worm drives, and bevel gears. Each screen includes focused controls and live calculations, so changes stay connected to the mechanism you are editing. Save builds to History, delete demo items when you no longer need them, and compare two saved configurations in Bench mode. MechBus works offline and is designed for students, makers, and mechanical design practice.