🛗 Regenerative Traction Elevator (2D shaft and energy flow)

2D shaft view of a traction elevator with counterweight: change load, balance ratio and motion limits, send the car between floors and watch speed, motor power and the energy drawn from or returned to the grid. Same dynamics and energy accounting as the 3D page, with four numerical checks.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install