Oct-18 to ARRI PL mount

Cheap and dirty adapter for OCT-18 soviet cinema lenses to ARRI PL mount, NOT for production but to test your lenses before rehousing work without the need to buy an adapter
I design my self the PL mount than can be that is not perfectly accurate but is working.
The inner part is 47.2mm to compensate most of the 3D printer Increasing size of inner holes and avoid any grinding, the 47mm OCT-18 fit perfectly if your 3d printer is accurate enough.
NB no hole for holding insert screw, the barrel will pop of if you unscrew too much, the adapter add 5 mm to the 52 mm PL mount focal flange to reach the OCT-18 57mm focal flange distance.

OCT-18 mount info:
lens port diameter 47mm
flange focal distance 57mm