FlexiStruder - just another remix (ender 3)

prusaprinters

<p><strong>OBSOLETE</strong> - see updated version <a href="https://www.prusaprinters.org/prints/126375-flexistruder-updated-just-another-remix-ender-3">here</a></p><p>&nbsp;</p><p>a remix of Flexistruder by MikeFrancies ( <a href="https://www.thingiverse.com/thing:1099016">https://www.thingiverse.com/thing:1099016</a> )</p><p>I wanted to update the extruder on my Ender 3 Pro in order to be able to print flexible filaments. But why spend money on a new extruder or adapt the original one, when there are already great ideas to print something yourself?</p><p><strong>I have adapted the original design somewhat for me:</strong></p><ul><li>added the possibility to adjust the contact pressure (M8 screw)</li><li>reusing the insert of the original extruder for better movement of the lever</li><li>mounting the bearing with an screw and an heat threat insert</li><li>added a BSP 1/8" thread for an PC4-M10 push-fit</li><li>PTFE tube through the lever and the base</li><li>some small changes to the geometry <strong>update 23.09.2021:</strong><br>I had a problem when printing very stiff filament (Green-TEC PRO Carbon).<br>With many retractions the tube was pushed back and the extruder could no longer transport material. To prevent this I have used a cable tie as a quick fix.<br>Maybe a compression fitting instead of the push-fit would be a better choice here.</li></ul><p><strong>final Printing:</strong>&nbsp;<br>0.4 nozzle, 0.2mm layer height<br>4 walls, 6 bottom and top layers, infill 40% cubic<br>support overhang angle 60°, touching buildplate</p><p><strong>printing A90 and A95 TPU works perfectly, that is all I wanted</strong></p><p>included step files to easy modify</p><p>have fun!</p><p>IF SOMETHING IS NOT OK PLEASE LEAVE A COMMENT OR SEND ME A MESSAGE<br>(sorry, english is not my native language)</p><h3>Print Settings</h3><p><strong>Printer Brand: </strong>Creality<br><strong>Printer: </strong>Ender 3 Pro<br><strong>Supports: </strong>Yes<br><strong>Resolution: </strong>0.2 mm<br><strong>Infill: </strong>40% cubic<br><strong>Filament: </strong>Green-TEC PRO Carbon PLA</p>