Generic metal bowden extruder filament guide

prusaprinters

<p>I bought a cheap generic bowden extruder very similar to <a href="https://d5nkxbcmx4bo4.cloudfront.net/faceview/d5g/a3h/ig/ae/affimgs/az-large-4860736.jpg">this</a> and immediately grew incredibly annoyed because the filament stuck to the threads in the hole on the output side of the extruder.</p> <p>So I created this little funnel thing with the same M6x1 threading as the pneumatic coupling and the same 2 mm inner diameter as the PTFE tubing.</p> <p>This is the first iteration and it worked flawlessly for me.<br/> Now I can use the "load filament" script in octoprint from where the gears just grips the filament and it goes straight through!</p> <h3>Print instructions</h3><h3>Category: 3D Printer Accessories Summary</h3> <p>I bought a cheap generic bowden extruder very similar to <a href="https://d5nkxbcmx4bo4.cloudfront.net/faceview/d5g/a3h/ig/ae/affimgs/az-large-4860736.jpg">this</a> and immediately grew incredibly annoyed because the filament stuck to the threads in the hole on the output side of the extruder.</p> <p>So I created this little funnel thing with the same M6x1 threading as the pneumatic coupling and the same 2 mm inner diameter as the PTFE tubing.</p> <p>This is the first iteration and it worked flawlessly for me.<br/> Now I can use the "load filament" script in octoprint from where the gears just grips the filament and it goes straight through!</p> <h3> Print Settings</h3> <p><strong>Printer:</strong> Anet A8</p> <p><strong>Rafts:</strong> No</p> <p><strong>Supports:</strong> No</p> <p><strong>Resolution:</strong> 0.2 mm</p> <p><strong>Infill:</strong> Doesn't matter</p> <p><strong>Notes:</strong></p> <p>One thing to note is it's quite a tight fit, so it takes a bit of effort to scew it in.<br/> In hindsight I guess its better to print with maybe two perimeters and zero infill to give it at bit more flex.<br/> (I printed with three perimeters and solid infill)</p> <h3> Post-Printing</h3> <p>Ensure that that the inner diameter really is 2 mm by either drilling or just testing with a couple of filaments; they should move freely through the inner hole.</p> <p>(Mine came out perfectly one the first try but this is crucial)</p> <h3> How I Designed This</h3> <p>Designed using Fusion 360, my first own design I printed.</p>