This is just one of the structural ideas for a smartphone stand.
[hinge gap]
There are three types of hinge gap widths as files. It is recommended to print "hinge_gap_test.stl" first to determine which gap is appropriate.
smartphone_stand_gap02.stl ... gap width = 0.2mm
smartphone_stand_gap03.stl ... gap width = 0.3mm
smartphone_stand_gap04.stl ... gap width = 0.4mm
[size when folded]
height:35mm, thickness:9mm, length:68.5mm
[print conditions]
-printing type: FDM
-printer: Original Prusa i3 MKS
-filament: PLA
-support: no
-brim: no
-raft: doesn't matter
-print directions: Please refer to the photo
The author hasn't provided the model origin yet.