Orrery Planetary Gear

Epicyclic Ring Alignment Puzzle · L1/30
Tap dials to rotate the gearset · align all 3 markers onto one line
Stars: 0/90 · Moves: 0

Aligned! ⭐⭐⭐

★★★

All three rings aligned in N moves.

Select Level

⚙ Orrery Planetary Gear

An epicyclic (planetary) gearset has three concentric rings: the Sun (center), the Planet-Carrier (middle), and the Ring (outer).

Each dial rotates all three by a fixed tooth-ratio triple. Your goal: get all three marker dots onto the same radial line.

Fewer moves = more stars. ≤cap  ★★≤opt+2  ★★★=optimal.