This works perfectly for the Kodak Mini 2 Retro since it also prints credit-card-sized photos.

This thing is mesmerizing. I downloaded both the 3mf and STL files. I opened the 3mf and replaced the model with the STL then followed the instructions for the variable layer height and had no issues in my A1 mini. Printed in Bambu White PLA basic. Really nice print.

Really nice! Looks very clean and feels very sturdy. I printed everything in my A1 Mini with 5% infill and 0.28 layer height, I printed two big shelves and put them upside down to have a flat surface on top. I resized the side bracer in Blender to keep the height similar while mounting the shelves upside down. Used about one and a half rolls of filament for this. I see myself printing more of this at any moment.