bticino 350010 adapter for Amazon Ring Video Doorbell 2

thingiverse

this is an adapter I've designed to install a Ring Video Doorbell 2 in place of a bticino one. it fits in the bticino 350010 box allowing you to use the original screw that held the old bticino intercom. to mount the Ring backplate I've used 4 M3x20 screws (M3x10 whould be ideal but I only had the longer ones) and 4 hex nuts, 5mm that fit the 3D printed holders. you have to push the nuts a bit hard, it's a tight fit. the picture from behind is from the prototype, that's why it looks different from the STL file. P.S. remember to install a 25Ohm, 50W resistor if you plan to use the 12VAC bticino PSU that powers the the electric lock, if you don't have an AC ringer you need it per Ring instructions.