A couple mounting plates to attach an Atom smoke alarm to aluminum extrusion or a NEMA17 motor. These tiny smoke detectors* are small (40mm diameter) and light enough (43g) to mount on a printer or extruder.

I had some concerns that the plastic fumes would trigger the alarm, but that hasn't been a problem so far. I haven't tried burning plastic to see how sensitive it is.

Update: The alarm did trigger once when printing transparent ABS. I doesn't seem to trigger consistently, but I'll probably move the alarm further from the extruder if it happens again.

Parts List:

1 - FIrst Alert Atom Smoke Detector*

2 - M5x8 Socket Cap Screw

Filaments: (full list can be found on thrinter.com)

-- Honeycomb Drone White ABS

*affiliate links

Print Settings

Printer: Eustathios

Rafts: Doesn't Matter

Supports: Doesn't Matter