Adapter for Sinar Copal Shutters

For shutters for my large barrel lenses, first I started with my own 3-D printed guillotine shutters, which work great, but I want more speed range. Then I tried to make my own leaf shutter, and then realized that it's going to be tough to get faster than 1/15. Since my time is limited, I decided to see if I can make an adapter board for a large Sinar shutter and it works great!!! Photos in the comment after they are dried

This is on the Pinkham & Smith Visual Quality IV Series 2. I just finished printing one for my Cooke 13"