Concealed Pulley Bevel Gear

This mechanism was the culmination of a quarter-long exploration into gears, pulleys, linkages cams, and mechanical motion. I designed and assembled a fully functional system that integrates a concealed pulley with 3D-printed bevel gears, using only hardware-based connections and press-fitting — no glue or adhesives.

This project combined laser cutting, 3D printing, and iterative prototyping to create a clean, precise form that emphasizes both functionality and craft.

The Process

This is where I started off — considering a bevel gear mechanism that transform rotary motion in the XY plane to rotary motion in the YZ plane: