Print model with PLA, PETG, ABS using 0.2 layer height, 15% infill.
I use 0.6mm nozzle but 0.4 will also work.
Prints without support.
You will need 2 small magnets per frame: 5 mm in diameter and 2 mm thickness.
You can get them cheap from Ali or your local store.
Use pliers to put the magnets into the frame.
The author hasn't provided the model origin yet.