This spool stopper is designed for the stock spool holder on the Creality Ender 3 V3 KE. It installs on the end of the spool arm and prevents filament spools from sliding all the way to the edge or potentially off the holder.

Keeping the spool centered helps maintain smoother filament feeding and reduces unnecessary movement while printing. This simple upgrade helps keep your filament spool more secure and your setup a little more organized.

The model is designed to be lightweight, easy to install, and quick to print while still being strong enough for everyday use. It’s a small but helpful addition for anyone using the stock spool holder.

Works best on spools with a smooth and even center piece. It does work with cardboard and 3D printed spools but it's not as easy to put on if there's a lip on the inside.

Print Settings

Layer Height: 0.2 mm

3 walls

Infill: 20% Gyroid

Supports: Tree supports recommended

Estimated Print Time: ~50 minutes

Recommended Material: PETG (for durability)

3D printing settings

Take the stock spool holder off the arm. Slide the stopper down the arm and reinstall the stock spool holder. Then slide the stopper up and screw it in until it'll hold itself steady.

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Ender 3 V3 KE Spool Stopper Prevents Filament Spool Sliding