120mm Film Holder with cover

thingiverse

Edit - I'd suggest using Rev 1 of the lid vs the original lid. I've increased the size of tabs to hopefully give it more strength. I'd still suggest thicker walls, just to help with overall strength of these tabs. The "latches" on the lid are easily broken. I printed with PLA, but another material might be better suited. My second print of the lid, I increased the wall thickness from the default Cura settings, and this seemed to help. The lid, print with the top down on your bed, not as you see it in the preview.