Filament Runout Sensor Enclosure (Micro-Switch)

prusaprinters

<p>This is filament sensor enclosure. The filament sensor use a PTFE tube to guide the filament. A cut in the PTFE tube expose the filament to a micro-switch with ball bearing. This should keep the friction to the filament to minimum even during retraction.</p> <p>This is thought to be mounted on a BMG extruder with the PTFE tube going in the PTFE coupling. The sensor is light enough to not cause any trouble.</p> <p>2nd version: switched to OpenSCAD and added the source. Added a blocker for the PTFE tube so it does not slide out of the box.</p> <h3> Print Settings</h3> <p><strong>Printer Brand:</strong></p> <p>Creality</p> <p><p class="detail-setting printer"><strong>Printer: </strong> <div><p>Ender 3</p></div><strong>Rafts:</strong></p> <p>No</p> <p><p class="detail-setting supports"><strong>Supports: </strong> <div><p>No</p></div><strong>Resolution:</strong></p> <p>0.2</p> <p><p class="detail-setting infill"><strong>Infill: </strong> <div><p>10%</p></div><br/> <strong>Filament:</strong><br/> Das Filament PLA Black <br/> <p class="detail-setting notes"><strong>Notes: </strong> </p><div><p>Current version: Recreated the original using OpenSCAD and adapted to hold the PTFE tube and a JST XH connectors. The cover also have a small blocker to prevent the PTFE tube from sliding out.</p> Old version: I modified the original STL using FreeCAD so it can hold a PTFE tube and a JST XH connectors.</div></p> </p></p></p> Category: 3D Printer Accessories