Modular filament feeding system - extreme low profile

thingiverse

NEW V3 revision - Click&snap mounting - More space for extruder travel in top Z position, ensuring smoother performance - Filament hole enlarged to facilitate easy removal when damaged or clogged - Added 6.30mm version for thicker frames as requested by users V2 revision - Raised design to prevent extruder collisions in top Z axis position - Cable management holes included, allowing for smaller micro USB ports and standard 12V barrel connectors for LED strips - Slimmer profile for easier handling and storage - Improved filament holder with push-in mechanism for secure retention Hey Thingiversers, I am excited to introduce my upgraded Prusa i3 MK2 shelf, featuring a low-profile design that makes it easy to access filament. As shown in the photos, I have eliminated the spool holder from the frame, which was causing issues with getting filament to the printer. My previous solution used a PTFE tube guide, but it would grind against the top of the shelf when printing at maximum height. To address this problem, I designed a new solution that is not only low-profile but also allows for easy grouping and swapping of materials mid-print or between prints. **List of Essentials:** Get some PTFE tubes with a tight fit for 6/4mm tubes. You can find these cheap and good quality on AliExpress. If you're looking for other upgrades, this filament guide pairs perfectly with my IKEA Samla filament spool holder, which can house three spools and feed them to the printer seamlessly. **CAUTION:** The original design may cause collisions with the extruder in top Z axis position. If you print high models frequently, get the revised V2 version. Otherwise, opt for the original design, which is suitable for Z axis up to 180mm but should be used within its limits. Back to printing! I'd love to see your creations. In case of questions or concerns, let me know in the comments. Happy printing!