Simple passport case to protect your passport from getting bent or damaged, especially in a purse or bag. This is designed exactly to a U.S. Passport size because that's what I have.

Most of the other designs I found were not well optimized for 3d printing and required supports for the cutout needed to retrieve the passport. I made this one with a steep 60* angle in order to make it printable without supports.

There's a very slight taper on the sides to better help clamp the passport spine in place. Even shaking it hard it didn't fall out of the case.

Because it's tall and narrow I do recommend a brim. For mine I printed it out of PETG with 3 walls, 15 row brim and a 0.3mm object gap. It pulled right off when I took it off the bed.