Small spacer plate for fitting Moes home zigbee scene switches on top of standard single gang light switch.
The part is printed and the push out pieces from the back of the scene switch are removed (this can be done by pushing out with a screwdriver or similar object or can be carefully cut using the small side cutters supplied with many 3D printers).
The original standard light switches can then be set up so that they are on to allow the smart bulbs etc to still be powered and then the screws are removed
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This will allow access to mains voltage behind the switch so only attempt this if you are comfortable working around this and know how to do it safely ie turning mains supply off to the circuit first.
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The standard screws may be to short and I used 40mm replacements for this. they go in through the back plate of the scene switch and then through the holes at the side of the printed part. These are designed to be a very tight fit so gently twist the screw to help it through.
The back plate of the scene switch and the adapter plate are then placed on to the standard switch and screwed back into place being careful to make sure it is secure while not bending the scene switch back plate. this completes the installation and the scene switch can be slipped back on to its backplate.