Bambu Lab 4-in-1 PTFE Adapter

Simplified multi-material feeding, universal compatibility, and advanced management for AMS and dry boxes.

The original Bambu Lab 4-in-1 PTFE adapter is an essential component for expanding the capabilities of Bambu Lab 3D printers. Designed to combine up to four feed lines into a single input to the print head, it allows you to manage up to seven different filaments in total, integrating the AMS (Automatic Material System) with external spools and special filaments not supported by the automatic system (such as TPU 95A, Bambu PET-CF, or carbon/glass-filled filaments).

Thanks to this adapter, you can easily switch from standard AMS materials to technical or flexible filaments fed directly from drying boxes (dry boxes) or the built-in spool holder, without having to constantly disconnect the PTFE tubes.

At a Glance – Your Benefits

• Original Bambu Lab Spare Part: Maximum reliability and perfect filament flow for Bambu Lab printers.
• Multi-Input Management (4-in-1): Connect up to 4 PTFE tubes simultaneously to a single feed channel (OUT end).
• Maximum Printing Flexibility: Supports configurations with AMS, the standard spool holder, and up to two external dry boxes for hygroscopic materials.
• Compatibility with Special Filaments: Allows the use of materials incompatible with the AMS (TPU, PET-CF, PA-CF, abrasive filaments) without uninstalling the automatic system.
• Plug-and-Play Installation: Smooth filament passage to prevent jams and friction in both AMS mode and single manual feeding.

Recommended Configurations and Technical Specifications

Advanced Configuration Example:

1. Input 1: Standard built-in rear spool holder.
2. Input 2: Connection to the AMS system buffer / hub for multi-color printing.
3. Inputs 3 and 4: Direct connection to dryers or dry boxes for moisture-sensitive materials (TPU, PC, Nylon).