This is a remix of the camera holder for MiniSumo's Pi Zero & Camera Case
This case takes the same design, but is shortened and modified to take the standard Pi 3 camera. I'm pretty sure that the V2 camera is the same size, but I've not tested it.
There are two iterations of the model. Both use the same body, but there are two lids to choose from. One has a mount that the Pi3 camera will slot onto and the second is an option without a mount. I figure that this second option can be used with cameras from other vendors that fit the square hole, but not the mount, with the camera held in with foam/sponge etc.
When fitting the Pi 3 Camera it should be noted that the socket for the cable is on the opposite side to the original IR camera meaning that the cable needs to be looped around twice to be orientated correctly. I've shown an image of how I looped mine. I may do a remix of the case to change the exit point of the cable and to add a hole to access the MicroSD and second USB port.
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I added a new mount with a hole at the base - this is to allow for installs where a cable tie is passed around the length of the body. I didn't have time to take a photo, as it was a last minute mod.
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Download the case, case lid, camera mount and nut from the original model:
https://www.printables.com/model/156071-pi-zero-camera-case/comments/827748
The author remixed this model.