⚙️ Planetary Gearset: Ratios, Held Member and Torque Split (2D plan view)

2D plan view of a simple planetary gearset. Choose which member is held (ring, sun or carrier), set sun and planet tooth counts, planet number, input speed and torque, and see all four speeds, the ideal torque split and whether the planets can be assembled. Same constraint equations as the 3D page, with four in-page numerical checks.