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)