Set the seam to 'Random' to ensure the rollers stay perfectly round, and use a matte filament to increase surface friction, preventing the bearings from sliding without spinning.

This is a compact, high-efficiency Universal Spool Roller designed to provide a smooth and friction-free feeding experience for your 3D printer. By using ball bearings instead of a static arm, you significantly reduce the load on your extruder, preventing under-extrusion and filament slips.

Key Features:

• Universal Design: fits every standard 1kg rolls.
• Smooth Rotation: Specifically engineered for 6803 bearings (17x26x5 mm) for effortless spinning.
• Space Saving: Low profile makes it perfect for desktop use, shelving, or placing inside a drybox.

Technical Specifications:

• Required Hardware: 4x 6803 Bearings.
• Recommended Material: PLA Matte; ASA/ABS;

Assembly Instructions:

1. Print the base parts
2. Press-fit the 6803 bearings into the circular slots. They should fit snugly.
3. Place your filament spool directly onto the bearings.
4. Happy printing!