Spool Dry Box Outlet With Filament Alarm

thingiverse

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 of glue may be required depending on how it prints. The battery holder can be stuck using a sticky foam pad. When drilling the box mark it up using masking tape a be sure to place some scrap wood as a support, otherwise the box is likely to crack. **Electronics** I use a CR2032 battery linked up to a LED and the normally open contacts on the switch. Another option is to replace the LED with a piezo buzzer. A more complex setup would involve linking the filament alarms to software via a micro-conroller and maybe a wireless module. Let me know if you have any questions/notes on this design!