Website: thingiverse
Author: MoRaumZeitPiraten
Price: Free Download
File format: .Stl 3d printable
Description:
Iris / shutter / Blende / Aperture based on https://www.thingiverse.com/thing:773759In one of the pictures you can see the size comparisonI scaled and changed the design to fit a 28BYJ-48 Stepper.