Simple DIY Filament runout sensor

prusaprinters

<h3>&nbsp;Quick and dirty filament sensor</h3><p>The design revolves around putting together a filament sensor, with cheap, easy to source, and very likely alway present at home components, especially for 3d printer hobbyists.</p><p>This can be used in octoprint with any of the sensing plugin's Octoprint-Smart-Filament-Sensor, Filament Sensor Reloaded etc.</p><h3>Design Features</h3><p>&nbsp;</p><ul><li>50 minute print</li><li>Fillets present, no brims required.</li><li>No supports required. The only area that needs to be supported already comes with micro-blob type of supports.</li><li>Pleas use an exacto knife or screwdriver to prop them out</li><li>Filament threading window on the cover</li><li>Already threaded m3 screw receptables, no nuts required.</li><li>Users may connec the switch directly to a cable or use a PCB standoff for a JST 3Pin female connector mount.</li></ul><h3>Assembly instructions</h3><ul><li>Please remove the supports from the PCB slot.&nbsp;</li><li>Cut a 3 lines 4 rows veraboard</li><li>Solder the switch to two of the lines.</li><li>Slot the PCB into the slot.</li><li>Push the JST connector into place and solder it to lock the assembly into place.</li><li>Put the lid on.</li></ul><h3>Bill of materials</h3><ul><li>G605 Micro Switch &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ~50c</li><li>JST-XH 3Pin Female Header &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1.5£/$/Euro</li><li>4x M3 Screws &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 50C</li><li>Peace of Veraboard 3Lines X 4 Rows &lt;1£/$/Euro</li></ul><p>&nbsp;</p>