Functional Iris Diaphragm

This functional iris diaphragm reproduces the elegant motion of a real 6-blade aperture. The mechanism works smoothly and precisely, making it perfect for mechanical demonstrations, optical experiments, or simply as a satisfying fidget object. The assembly requires attention during the first setup — make sure to align all six blades properly to ensure flawless movement. Once assembled, the motion is fluid and very enjoyable to operate. No supports, no glue, no screws – just smart interlocking parts.