I redesigned the back to fit around the added structure, and after some experimentation, added the rounded light seals above and below the back of the camera to help with light-tightness, a persistent challenge for me. The back fits around the camera like a nested box, and is lined with black felt for better light sealing.

To attach the lens, I made a lens board with a standard Copal #00 shutter hole in it. Attached to the front of the lens box, embedded within a few layers of plywood, are threaded nuts that permit the lens board to bolt on to the front of the camera, which gives me the very limited ability to adjust the focus in between rolls by adding or removing shims. I made a compact ground glass by sanding a small sheet of clear plastic, and I can place this where the film sits, and use a loupe to adjust the focus. It’s not perfect, but it gets the job done. For this version, I simply set the focus at around 15 meters, and stop down to achieve infinity focus.

With the design work done, I exported the parts to .dxf files and laid them out in preparation for laser cutting. I use the wonderful UW Comotion Makerspace for the laser cutting, and in 30 minutes, I had all the parts needed to start assembling the camera.