Smoke Detector Holder

A small bracket to hold a smoke detector to the top of a cupboard - i.e. right over my printer. use 2 M3 bolts, and tap the holes to fit (you could make the holes a bit bigger, but an M3 tap seems like a must-have for printing anyway...

On this smoke detector, there is a recess inside the lip, which has space for the screw-heads. Mountings are about 61mm centre (there is a bit of give in the structure, so 1mm either way should work.