If you’re into 3D printing, you probably know how important it is to store your filament properly. One small but often overlooked habit can save you from tangles, failed prints, and even damaged filament: clipping the end of your filament spool. When you finish a print or switch filaments, it’s tempting to just let the loose end hang. But over time, that loose filament can unwind and loop over itself. The next time you load it into your printer, those loops can tighten and create a knot — leading to extrusion issues or complete print failure. Using a filament clip (or threading the end through the holes on the side of the spool) keeps the filament tight and secure, preventing unwinding. It also protects the end of the filament from absorbing moisture or snapping off from bending stress. Here’s why this simple habit matters: • Prevents tangling: Loose filament can easily jump out of position and get crossed under other layers. • Protects your extruder: Tension or knots can cause under-extrusion or strip your filament. • Extends filament life: Properly coiled filament is less likely to kink, snap, or degrade from exposure. What are your bad experience with tangled filament?