This is a QR code/note holder. There are 3 types. One with no fillets, another one with the rolling ball fillet (requires a bit less filament), and one with a setback fillet (less filament than the rolling ball). All of them are 20mm tall and the length and width are 20mmx20mm. The slot has a 15 degree overhang, which might be a problem. I will test the overhang and check if it needs support. If you want a better slot resolution, print it on the side.

Update! New note version! The STL's are "Note.stl", "Note_Round.stl", and "Note_Setback.stl(Full text after print settings).

Update! No support needed! Found out that 15 degree overhang wouldn't cause any problems. If you add support you can't remove it. If you're having issues with the overhang try printing it on the side.

Update! New less filament version and chamfer version. STL's Less_Fil.stl and Note_Chamfer.stl.