This model is for an easy print to mount up the BM5150 or similar Vtech 5" parent units to the wall. While rough around the edges due to minimal refinement it does the intended job fine. 
Prints on untuned machines reasonably well and in my case only needed a light sand and spray paint in order to suit the unit and location it was going.

I use 8g x 16mm multipurpose screws to mount this as they're very cheap at Bunnings. 
I also added to 3mm rubber circles the sticky bumper kind to the back to slightly change the viewing angle and stop the monitor from being able to slide at all. Please feel free to refine or remix as you see fit, just add remix files to the remix tab cheers.