Wanhao Duplicator i3 filament holder

These brackets hold three roles of filament at one time, and are designed specifically to fit on the Wanhao Duplicator i3. They clip on the top, from the back, and come down over the top two screw holes on each side. You have to take the screws out, put these on, and then replace the screws. Be careful not to over-tighten. And when you're clipping them on, they will need just a little elbow grease to snap into place. It's a tight fit, at least for my printer.

I used a 1 inch diameter thr