I have tried alot of designs that are supposed to be snapped onto the back of blink cameras, and they all broke 'fingers' off when trying to snap them on to the camera.
I ignored it for a bit but lately I really wanted a gopro type of mount to work with the Blink camera ecosystem so I came up with this unit.

I made this with longer 'fingers' to plug into the back of the camera. The longer fingers seem to flex enough that the bracket doesn't snap some of the fingers off.

The 'raw fitting' stl file is just so you can see the finished product.
The 'blink gopro' stl file is the file that is intended to be printed and then the snap away pieces broken out.

I printed it with the gopro mount portion having break away parts so that I could stand it up and get a good print.
Put a utility knife between the legs of the gopro section.
With a pair of pliers snap out the keeper.

Printed at 100% with PETG to be strong.
I use a 7/32 drill bit to clean up the hole for the gopro bolt to go through. You don't have to use the drill but then you have to thread the gopro blot through the whole assembly and I find that tedious.

if you want to mount the Blink camera in a Creality enclosure on the side or top poles have a look at my;
https://www.thingiverse.com/thing:6544685
for a clamp on gopro type mount.

If you need gopro type extension bars and stuff look at;
https://www.thingiverse.com/thing:62800
by MoonCactus.
there are about 200 pages of remixes off of MoonCactus designs.
Mine is not a remix but I do use a couple of his extension bars.