Print core cleaning maintenance schedule

Ultimaker print cores should be cleaned periodically for optimal print results. Material can sometimes get stuck inside the nozzle and degrade. This can cause extrusion problems, or even completely block the print core.

Some materials are move prone to degradation and blocking the nozzle, such as PVA and composite materials.

To prevent problems, you can perform the print core cleaning procedure according to the recommended maintenance schedule below:

Print core type Maintenance schedule
AA No scheduled preventive maintenance required
BB 3 months (or ~400 printing hours)
CC Every month (or ~100 printing hours)

Using the Ultimaker cleaning filament is the most effective way to clean and unclog print cores. If you don’t have the Ultimaker cleaning filament at your disposal, use PLA instead.

Tip: The AA print core does not require preventative maintenance. However, it is recommended to clean the print core when changing between materials that require different printing temperatures.

Cleaning print cores on the Ultimaker S5

A step-by-step guide to performing the cleaning procedure on the Ultimaker 3 and Ultimaker S-line printers can be found on this page.

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