Wanhao Duplicator i3 filament holder

thingiverse

These brackets hold three roles of filament simultaneously, tailored specifically for the Wanhao Duplicator i3. They clip onto the top from behind and extend over the top two screw holes on each side. To install them, you must first remove the screws, then attach these brackets, and finally replace the screws with caution to avoid over-tightening. A bit of elbow grease is also required when clipping them into place, as they fit quite snugly onto my printer. I used a 1-inch diameter threaded pipe, 12 inches long, with two end caps as the bar between the brackets, and it works exceptionally well. With this setup, I can now easily switch between three different filaments on my printer without needing to change them.