TinyRM - Smallest possible filament run-out monitor

prusaprinters

<p>This is yet another optical filament run-out monitor/sensor, which I've tried to make as small and lightweight yet reliable as possible.</p> <p>I got it down to a size of 37 x 25 x 12.5 mm.</p> <p>It features some very small Neodymium magnets, which are acting as spring replacement for the lever.</p> <p>Here's a video of it in action: <a href="https://www.youtube.com/watch?v=ADsNyAwer2s">https://www.youtube.com/watch?v=ADsNyAwer2s</a></p> <p>BOM:</p> <p>4 x Neodymium disc magnet, 3 mm in diameter, 1 mm thick</p> <p>2 x Philips screws 2.2 mm by 6.5 mm</p> <p>Folks from the EU can get those magnets here: <a href="https://www.supermagnete.at/eng/disc-magnets-neodymium/disc-magnet-3mm-1mm_S-03-01-N">https://www.supermagnete.at/eng/disc-magnets-neodymium/disc-magnet-3mm-1mm_S-03-01-N</a></p> <h3>Update</h3> <p>Added the STEP file in case you want to modify / remix it.</p> <h3>Print Settings</h3> <p><strong>Printer:</strong></p> <p>ZEvolution</p> <p class="detail-setting rafts"><strong>Rafts: </strong> <div><p>No</p></div> <p><strong>Supports:</strong></p> <p>No</p> <p class="detail-setting resolution"><strong>Resolution: </strong> <div><p>0.2</p></div> <p><strong>Infill:</strong></p> <p>25%</p> <p><strong>Filament:</strong></p> Extrudr.eu, EcoPLA PLA <p>Any color Post-Printing =============</p> <p><strong>Assembling instructions</strong></p> <div><ol><li>Glue two of the magnets into the lever</li> Put the other two on top of the first ones, so they attract each other Get each of those, turn them by 180° and slide them into the pockets (yellow arrows) Insert the optical sensor (IR) Insert the lever Screw the lid on top </ol></div></p></p> Category: 3D Printer Accessories