Anet A8 friction-less filament guide

thingiverse

Here is the rewritten text: I chose a large screw for the primary friction point. The existing LCD screws held the guide firmly in place on top of the printer. This filament guide replaced one of the pillars that originally supported the LCD screen. To accommodate 1.75mm filament, I used a big screw with a coarse thread pitch, ensuring it wouldn't scratch the delicate material. The main drawback is that an extra screw is required. Here are the specifications for the screw: Length: 37mm (a minimum of 25mm would also work) Outer diameter: 5mm (4mm could potentially be used as well) Inner diameter (thread): 3.2mm (slightly larger, but it may be difficult to screw in) A large thread pitch allowed the filament to lie comfortably between thread rings. The advantages of this design are numerous: It printed perfectly without supports on my Anet A8 printer, weighing a mere 3 grams and taking only 26 minutes to print at 0.2mm layer resolution. Print Settings: Printer: Anet A8 Rafts: No Supports: No Resolution: 0.4mm / layer 0.2mm Infill: 20% Designing This I based my design on a filament guide I found online, but it turned out to be too loose after a few prints. The filament also drilled holes in the plastic, increasing friction significantly. To avoid this issue, I incorporated metal into my design, eliminating friction and the corresponding plastic drilling effect.