The Flow Blocker for Bambu Lab X2D is a metal component installed on the print head that seals the inactive nozzle and prevents unwanted filament leakage (oozing) during printing. This original Bambu Lab part, designed specifically for the X2D dual-nozzle printer, ensures clean prints and stable quality when switching between nozzles.

Prevents oozing from the inactive nozzle

The main function of the Flow Blocker is to mechanically seal the nozzle that is currently not in use. During dual-nozzle printing, the inactive hotend tends to leak (ooze), which contaminates the print and degrades the part's surface. The metal plate closes off the nozzle opening and prevents molten filament from contacting the print.

Quality metal construction

The component is made of metal that withstands the high temperatures of the nozzle and repeated mechanical contact. The material is engineered to endure long-term operation without deformation or wear of the sealing surface.

Original part for Bambu Lab X2D

The Flow Blocker is developed directly by Bambu Lab and is intended exclusively for the X2D model with the dual-nozzle print head. Precise dimensions and tolerances guarantee a flawless fit in position and reliable function. We recommend using only original parts.

Easy installation on the toolhead

Mounting the Flow Blocker is quick and does not require any special tools. A detailed installation procedure can be found on the official Bambu Lab Wiki. After installing the component, we recommend running a test print to verify the proper function of the seal.

Better multi-material print quality

Reliable sealing of the inactive nozzle significantly improves the quality of multi-material and multi-color prints. It reduces stringing, blobs, and contamination between materials - especially useful when combining materials such as PLA, PETG, or ABS.

Consumable part for regular replacement

The Flow Blocker is a consumable component that gradually wears out - the sealing surface can become contaminated with filament residues or mechanically damaged. To maintain maximum print quality, we recommend always keeping a spare on hand and replacing it at the first sign of visible wear. It is also a suitable accessory for printing with more demanding materials from the ASA, nylon, or carbon composite categories.

Technical parameters

Package contents

3× Flow Blocker for the Bambu Lab X2D print head. An original part in factory packaging, ready for immediate installation. For proper installation and maintenance, follow the official Bambu Lab Wiki guide.