5-Way Filament Splitter

5-Way Filament Splitter for Bambu A1 / A1 Mini (AMS + External Spool Ready)

Tired of constantly swapping Bowden tubes when switching between your AMS and an external spool? This 5-way filament splitter is designed to streamline your workflow and eliminate that hassle entirely.

This part allows you to keep both your AMS and external filament source connected at the same time. With a smart internal path layout, it enables smooth filament routing while giving you the flexibility to choose your feed source without disconnecting anything.

Best of all, the splitter is fully 3D printed—no extra hardware, fittings, or purchased parts required. Installation is just as simple: no tools needed. It slips snugly over the existing 4-in-one adapter for a secure, hassle-free fit.

A STEP file is included, making it easy to modify or adapt the design to your specific setup.

Key Features:

-Dual-source convenience: Seamlessly switch between AMS and external spool without touching your Bowden setup
-5-way routing: Supports multiple filament paths for flexible configurations
-Fully printed design: No additional parts required
-Tool-free install: Slides directly onto the stock 4-in-one adapter
-Customizable: STEP file included for easy modification
-Reduced wear & tear: No more repeated tube removal and reinsertion
-Clean setup: Keeps your printer area organized and efficient
-Compatibility: Designed specifically for Bambu A1 and A1 Mini

How to Use:

Slide the splitter onto your printer’s existing 4-in-one adapter
Connect your AMS lines and external spool Bowden tube as desired
Load filament from your chosen source (AMS or external)
Ensure only one filament path is actively feeding at a time for best results

Printing Tips:

Use a minimal layer height for smoother internal filament paths
Enable automatic tree supports for best results
Print with a smooth, low-friction material (PLA or PETG recommended)
Ensure good layer adhesion for long-term durability