Have you ever lost a screw during device (e.g. laptop) repair? Here is one simple solution. :)
You can print 3 trays (tray.stl or tray-rounded_corners.stl) and stack them using stacker-optional.stl or print any amount of the latest stackable_tray.stl which does not require any other supporting part.
2021-02-27
2021-02-17
2021-02-15
The author hasn't provided the model origin yet.