This Design is based on my “Minimal Raspberry Pi Zero Case/Holder” (http://www.thingiverse.com/thing:2221310)
I wanted to also create a simple to print, detach and mount case/holder for the Raspberry Pi A+.
It has only one part
You don’t need any screws
You have detach helper (see pictures), use a small screwdriver or something similar
Because of the spring in the middle, the case is flexible (that’s why you can push the Raspberry easy into it)
The mounting holes have a distance of 75mm, so you can also mount it on a VESA 75 Monitor/TV