Summary

Hang your POSTERS on your wall with NO DAMAGE

I made them for foldback clamps / binder clips that are about:
12x15,7mm

Here's how to do it:

Print 2 of the left ones and 2 of the right ones(or just one of each if you just want the upper corners)
Put the clamps in the prints (maybe glue them in)
stick them to the wall with double sided tape or so
clamp your posters in

There are .stl and .obj files for when your programm doesn't support one of the other

I accidentally bought the wrong clamps so I had to do my own version of:
https://www.thingiverse.com/thing:1119626

Print Settings

Printer Brand:

Creality

                                            Printer:                      
CR-10S

Rafts:

                                            Supports:                      
No

Resolution:

.28

                                            Infill:                      
40

Filament:

Geetech PLA

                black                    
                        Notes:                     don't print to fast, it's a smaller piece.

nothing over 50mm/s for the infill

and the walls should classically be at half the speed.

Turn on the fans. If it doesn't cool fast enough it won't look good, as usual with smaller prints