18350 x4 Battery case (Rugged Box)
Источник:
Simple box design for 4 18350 cells.
You will need 3x M3x20 Screws.
I recommend printing the box, lid and latch with «Fuzzy Skin» applied only to contours, I use 0.3mm point distance and 0.1mm thickness.
EDIT: added a lower part to accomodate taller protected cells.
