Christie 35mm Projector Aperture Plate Wall Mount

At the college I work at, our film projectionist was complaining about not having a way to quickly access the aspect ratio aperture plates for the Christie 35mm Film Projector in the projection booth. He brought in a custom set that his other projectionist job uses and I duplicated the design. It can be simply printed in PLA, without supports. He needed to be able to place 10 aperture plates, so I made a version that could hold 4 and a version that could hold three.