Ultimaker Cleaning Filament

Ultimaker Cleaning Filament is UltiMaker's transparent cleaning filament for removing burnt or leftover material from inside the print cores of UltiMaker 3 and UltiMaker S series printers.

What it does

Material left in a print core can degrade and cause poor extrusion or a full blockage, especially PVA and composites. UltiMaker recommends hot and cold pulls with cleaning filament as the most efficient way to clean the inside of a print core.

When to use it

• Preventive maintenance based on printing hours
• When switching between materials with very different colours or print temperatures
• When you see under-extrusion or a clogged core

Use and care

On S series printers, go to Maintenance → Print head → Print core cleaning and select the core. Repeat hot pulls until the filament tip comes out clean, then do a cold pull to remove the remaining small particles.

UltiMaker recommends cleaning filament over PLA, and the S6 and S8 accept only cleaning filament. Never push a needle into the nozzle tip. Please check your printer model before ordering; our team can confirm compatibility by chat.