HPM/Arteor 'Legrand' switch plate to Sengled and Hue switch Adaptor

thingiverse

Converting our home to Home Assistant control meant covering up existing switches with more functional Zigbee switches, mostly from Sengled and Hue. For a while, that got pretty ugly, with double sided tape holding the plates in place over the existing switches. I designed these adaptors to cover our existing decorative 'Legrand' swiches from HPM, but also to be as slim and unobtrusive as possible - but still allowing access to the physical switch easily if necessary. Tolerances are tight between these adaptors and the Hue/Sengled plates, and although I added mount holes in the Sengled version, they're not needed. In fact, if you are going to paint the sengled adaptor, avoid painting the part of the body which holds the Sengled plate. Both Hue and Sengled versions will easily hold their supplied wall adaptors firmly, without using any screws, tape or other - simply push in to place. As far as possible, I've tried to respect the original lines and curve radius of the original Sengled and Hue products. Finally, I noted that one Legrand plate in my home had tabs protruding on each side, against the wall which made fitting difficult. You may need to remove/file the snap-outs for these (or remove the tabs from the wall plate) if you have problems fitting the adaptor over a plate with these tabs. I've had good results for these in both resin and PLA. The resin is a better finish, but being brittle, is prone to cracking if ou're not careful. I learnt that lesson with the Legrand plate with tabs.