PSU shield and mount for bulgin power switch

thingiverse

The chinesium switch I got from eBay failed closed leaving the printer powered up; I think the thin metal pads on the plastic rocker welded to the contacts. To try to avoid a repeat, I bought a Bulgin BZM27 switch as a replacement. 56mainline's basic design had been fine and fitted my customised AM8 well with a bit of hacking away of extraneous plastic, but to accommodate the new switch I needed to mod it. If you use this design, and get a buzzing or rattling noise, it could be the left side (which is not fixed to anything) vibrating against the case of the PSU. Whilst printing, hold your finger lightly on it and if the noise stops, that's the problem. A dab of hot glue or a wedge of packing foam between the plastic and the case solves the annoyance.