Should work with many variations of amcrest cameras and maybe some from other vendors.  My camera is an Amcrest IP5M-T1179EW-28MM.

https://amcrest.com/prohd-5mp-outdoor-security-ip-turret-poe-camera-2-8mm-lens-103-fov-ip67-weatherproof-white-ip5m-t1179ew-28mm.html

https://a.co/d/fycICwf

Print with wall side against the bed.  Use enough walls so that the hexagonal section doesn't have any infill.  

M3 heat set inserts are used for the camera mounting locations.

To confirm that this will work with your camera, go to the manufacturer's website and check the “Technical Specifications” document.  The distance between the two mounting holes should be 83.3mm.

This is that document for my camera:

https://amcrest.com/downloadable/download/attachment/id/46259/

Please note: my application is indoor in a baby's room.  This was not designed with consideration for weatherproofing or watersheding in an outdoor application.  However, depending on your application and material selection, it may work fine outdoors.