Small screw top container designed for storing LED Emitters, but should be useful for other small things too.
I have printed them in PLA and PETg with good results. I recommend using a 0.4mm nozzle and extrusion width. Tolerances should be generous enough to accommodate small variances in machine calibration, PLA will be more forgiving than PETg.
I have an issue with Cura 5.0 and 5.1 beta where it seems to create blobs on the threads, it acts like the known “resume after power failure” bug, but I have that disabled in marlin so I'm not sure why it still does it. Hopefully they resolve this soon, but until then I recommend using Cura 4.13.1 (if you slice with cura).
The author hasn't provided the model origin yet.