I printed out some 32mm darkfield filters for our Swift 380T microscope and I quickly realized we were going to need a good way of keeping them safe and clean. I noticed the customizable coin cell battery case and realized it would be perfect for my uses.
This includes both the case and the full set of filters with an increased Z height to reduce light leak. You might need to print the filters at 0.10mm layer height or use a piece of gaffer tape or similar to make the filter center opaque.
The author remixed this model.