I had a home security wall box next to my back door that wasn't being used, so I mounted a Lilygo T-display S3 to it using this mount. It shows outdoor temperature (via MQTT from an outdoor sensor) and the cat food left in my auto feeder.
The t-display is sandwiched between the backer and wall plate. Buttons are aligned with the S3 buttons (print 2).
PLA works fine. Very simple print. Keep the layer thickness low, extrusion wide and bed temps low to prevent curling of the wall plate edges. I used .15, .5 extrusion width and 60F on a PEI plate.
The author marked this model as their own original creation.