Dual plane 12 leaf 85mm iris

Update June 9, 2019: I have made adjustments to most of the files for better final result. See below for details.
This is a 12 leaf dual plane iris with a max aperture of 85mm. I have included a 15mm lightweight support for those who want to mount it on a modern camera, as well as hardware for 80mm clamp on support.
inspired by the iris-in and iris-out effects in silent film made via a similar process and invented by Billy Bitzer with an old large format iris placed in front of the taking lens.

Changelog:
original actuator was incorrect file and diameter was too small
lid and base now have fillets added to leading edge that leaves travel over so that they no longer can snag.
notch on base for actuator was made deeper so that travel through range is smoother.
added 80mm clip on support that can be mounted on iris by itself or sandwiched between iris and 15mm support.
aligned all .stl files to build plate

You will need:
3x 1/4-20 nuts
3x 1" 1/4-20 bolts
1x 1" 1-4-20 bolt