Standalone filament alarm/sensor

youmagine

This started out as a simple fix for my printer but it's proven to be really useful so far. It's a printed base with a battery, buzzer, switch and some PTFE tubing attached. Your filament will flow through the short PTFE tube while holding the switch open, disconnecting the buzzer circuit in the process. As soon as your filament runs out or passes completely through, the circuit will close and the buzzer will start making its presence known. This instantly alerts you to swap out a new spool! I know you could create a more advanced version that hooks up to your controller but this is a straightforward add-on that works on any printer without modification, just insert it between your spool and extruder and you're good to go! Check me out at: Youtube: http://www.youtube.com/c/MrCrankyfaceProjects Instagram: https://www.instagram.com/mr.crankyface/ 3d Hubs: https://www.3dhubs.com/malmo/hubs/mrcrankyface Patreon: http://patreon.com/Mrcrankyface