Operational mechanical iris 3D print model

An operational iris with control-arm cog and locking mechanism. Added ball-bearing cavities to provide smooth motion when in use. Constructed using rivets, nuts and bolts; bearings optional.

Item printing quantities: Blades / fins (print x12) Hinges (print x12) Inner ring quarter (print x4) Outer ring quarter (print x4) Standard corner (print x2) Standard cog (print x3) Control corner (print x1) Control-arm cog (print x1) Lock corner (print x1) Lock mechanism (print x1)