MMU / MMU2S - Shelf filament PTFE guide

prusaprinters

<h3>About</h3> <p>Above my printers I have a shelf, that's supposed to be 28mm tall. I decided to place my filaments on the shelf. Upon measuring I discovered these shelves are actually 27.2mm tall.</p> <p>The shelf isn't quite deep enough either, so I relocated the front feet from the holders to be a couple of cm back and built in a small step down into the top of the model.</p> <p>I've included the STL file and also the F3D file, just in case you want to change something. You might notice a circle taken out of the inner side of the model. This only serves as a way to use less filament.</p> <h3> Printing</h3> <p>In the pictures, I've not used any supports. This isn't a great print, so I'm printing the last 4 now with supports just to maintain the circular pattern. They don't have to be perfect, they just have to work.</p> <h3>Accessories</h3> <ul> <li>PTFE tubing - 2.5mm internal diameter, 4mm external diameter: <a href="https://amzn.to/2KILVZe">https://amzn.to/2KILVZe</a></li> <li>PTFE connectors / couplers - I used these: <a href="https://amzn.to/37UbajY">https://amzn.to/37UbajY</a></li> </ul> <p>The model has a thread for an M10 connector, getting it screwed in was slightly trickier than I would've liked, but I found clamping the connector into the thread while using a wrench was pretty easy.</p> <h3>Setup</h3> <p>I have the 5 filaments next to each other, each one sitting on the supplied spool holders from Prusa. I found that using around 20cm of PTFE out of the bottom of the PTFE connector works well, and the overhang produced from the MMU unloading isn't terrible (there's a picture of this)</p> <h3>In summary...</h3> <p>I hope you like this. Works well for me. Let me know if you have any issues!</p> <h3>Print instructions</h3><ul> <li>Rafts: No</li> <li>Supports: Yes</li> <li>Resolution: 0.2</li> <li>Infill: 15%</li> <li>Filament_brand: Prusa</li> <li>Filament_color: Prusament Orange</li> <li>Filament_material: PETG</li> </ul>