I use this piece with the standard Blink Outdoor 4 camera mounting adapter. It provides a tree friendly mounting platform adapter for the camera mount shipped with the Blink outdoor 4 cameras.

You will also need two small wood screws to attach the camera mount base. (The screws that come with the camera's mount are too long.)

You will also need two giant zip ties to go around the tree.

I didn't use any supports when printing. The zip tie slots in the piece are large enough that even if the filament sags when printing it is not a problem.