Spool Dry Box Outlet With Filament Alarm

Exit for diy filament dry box with filament out alarm, I used and LED witch lights up when the alarm is activated, you could wire the switch up to the print controller or to a peizo buzzer. A cheap storage box was used in the pictures, I mount the two supports either side of the box and use a threaded rod through all the spools inside. When constantly changing material type/colour I find a box holding multiple spools useful.

**Notes**
The PTFE tube should hold in on its own but a tiny drop