My first GC box - simple box for geocaching logbook with sliding cover (for example log book for baby PET preform bottle version, or any suitable). Slot is for magnet 50x6x4mm, inserted to model during print pause (M601).

9.5.2021 added GC-container-for-baby-pet to store whole baby PET preform bottle, with 3 slots for magnets 50x6x4mm.

15.5.2021 added holders for baby PET preform bottle. Each holder can be fastened by zip ties or by magnet 50x6x4mm:
GC-holder-baby-pet-paused.stl - magnet inserted during pause in print
GC-holder-baby-pet-glued-bottom.stl - magnet inserted from bottom side, must be glued
GC-holder-baby-pet-glued-top.stl - magnet inserted from bottom side, must be glued

Prusa

I3 MK3S

No

No

0.2

20%

Models are optimized for 0.6mm nozzle (extrusion width 0.65mm)
Do not forget insert pause gcode (M601) in layer asi shown in picture