12 inch wide and will fit any poster size smaller or taller.
Print 2x Top
Print 2X Bottom
3D Printer Used: Ultimaker S5
You can download my file from Thingiverse.
Printer Brand:
Rafts:
No
Supports:
No
Resolution:
.2mm
Infill:
20%
Filament: Proto-Pasta HTPLA Empire Strikes Metallic Black
I used 6x3mm magnets. You can purchase 100 pieces on Amazon for around $9, it's the cheapest I've found.