Snap on Raspberry Pi v1.3 (the cheap camera version) holder.
Compatible with the snap on holder described in https://www.thingiverse.com/thing:2886101.
The snap on pin (top right corner when you insert the camera) might need a bit of scrapping if your PCB thickness is not exactly the same as mine.
You can easily secure this holder with a M2.5X20 bolt and nut.
Print with 0.15mm layer height. No supports necessary if you print vertically starting from the hole support