Hi,
I designed this Bergeon style part dust tray for watchmakers or hobbyist to put tiny dust sensitive parts to prevent the dust landing on it, it usually comes with a clear glass bell cover, but I can't print glass, untransparent will do for me, enjoy.
The bell cover needs support while printing, I printed in 0.15mm resolution, looks good and works well, if you have more watchmaker tools requirements can be printed in plastic, please let me know, I'll love to design them, thanks.
Thingiverse: Watchmaker tools - Bergeon Style Prat Dust Tray
https://www.thingiverse.com/thing:3594536
Darak