Invisible Adapter Tradfri Dimmer (square) to Busch Jäger LX Light Switch

thingiverse

I was searching for a smart switch to match the existing Busch-Jäger "analog" switches in the house. Obviously, 3D-Printers don't achieve a glossy surface and also the Filament Colors don't match with the existing switches. So, I constructed this small 4-piece adapter to hold a (partly disassembled) Tradfri Dimmer inside the original Busch-Jäger frame. The original switch plate is glued to the rocker plate with thick double-sided sticky tape. How to use it: * Print the lower part ("unterer Teil"), the rocker plate ("Wippe") and the tradfri fixation ("Fixierung", two of these are needed), a total of four parts * put the lower part in the original frame (watch for the orientation, the cutouts for the rocker need to be on the left/right side) * attach to the wall using 2 screws * remove the back side and the lid from the tradfri remote. The lid comes off, if you slightly bend it on one of the axes with a small screwdriver * cut off the little reset button (otherwise, it will be pushed against the wall) with a scissor - see images * push the tradfri into the frame. The black IC needs to be on the lower right side (see picture) * fix the tradfri with the remaining two screws and the printed fixation things * slide the rocker over the tradfri and let the axex snap in * Remove the protruding parts from the original switch plate - I use a dremel for this and recommend to do it outside wearing a mask (can get dusty). * glue the original switch on top using double sided tape. Should you ever need to change the battery, pull of the lid. Maybe the tape will come of, maybe the rocker will be pulled out together with the switch. You only need to remove the two fixation screws to access the battery (the frame can stay on the wall). I add the original design files (made with freecad), so you can adjust this thing to other frame designs.