Hộp Đựng Thẻ SD Chắc Chắn Có Lẫy Giữ, M3 hoặc In Liền (Hộp SD)

This is a box for up to 3 sd cards, that is made to be durable, with spring loaded retention brackets to make sure the SD cards don't fall out. There are two versions, either a print in place one, or one using a 12mm M3 bolt and nut. The lid closes with a satisfying click. For the M3 version, I recommend applying some thread locker on the bolt.
I highly recommend printing this model out of PETG as some PLAs are too brittle for the springs (silk, CF PLA, …). In case you are having trouble with the retention clips, there are now versions without them.

Print settings:

0.4mm nozzle

0.16mm layer height

If there is an error when slicing with a wall extending to infinity, rotate the model a few degrees on the z axis.