Self-locking holder for cell phone. Side holders need fix with glue. Bottom holder with screw. Bolts needs also fix with glue.
Was tested with ABS filament on Prusa i3 MK3S with nozzle 0.4 mm and 0.15 mm layer
BLEND (Blender, filesize: 794 KB), STL (Stereolithography, filesize: 378 KB)