Bolted Filament Guide (20x20 Extrusion-compatible, e.g. Ender 3)

thingiverse

A specially designed filament guide for top-mounted spool printers that use 20x20mm extrusion sections on their vertical supports - check out the pictures to see what we mean!\r\n\r\nThe gapped ring makes it easy to load and unload your filament, while a cap keeps things secure and prevents accidental unloading.\r\n\r\nTo get started, you'll need some additional hardware:\r\n* An M4x6 countersunk screw\r\n* An M4 T-nut\r\n\r\nDon't worry if you only have an M4 screw on hand - just make sure it's the right length. If not, a hacksaw and file can help you edit its size.\r\nM5 screws might fit with a bit of extra effort, but they're not the recommended choice.