Bambu Lab Filament Buffer

Bambu Lab Filament Buffer — Smooth Feed for AMS

Steady Flow • Prevents Tugs • Plug-and-Play for P1S & X1 Series

The Filament Buffer keeps tension stable between your AMS and printer, preventing snags or pulling during fast moves. A must-have for single-AMS setups on P1S and X1 Series printers.

Why you need it

• Smooth feed: Maintains steady filament flow from AMS to extruder
• Prevents tugs: Reduces under-extrusion from tension spikes
• Compact setup: Installs quickly beside the printer

Compatibility & usage guide

• Supported printers: P1S, X1 Series
• Use with: Single AMS unit (required)
• Multiple AMS: Use AMS Hub instead
• Connection: 4-pin input → 6-pin output (3 mm pitch terminals)

What’s in the box

• Filament Buffer × 1
• M3 × 21.5 mm screws × 2

Product details

• Voltage: 24 V • Current: < 10 mA
• Material: Plastic / PCBA • Color: Gray
• Size: 109 × 55 × 33 mm • Weight: ~50 g

Quick tip

Route filament with smooth curves and keep the buffer level with the printer’s intake for best feeding performance.

Local advantages (Convoy-Westcan / Winnipeg)

• Same-day or next-business-day dispatch when in stock
• Free Winnipeg courier on eligible filament orders >$50
• In-store pickup available

Policy snapshot

Accessories and consumables are final sale. Approved returns on other items must be brand new and unopened; restocking fees and non-refundable shipping may apply. See our Refund & Return Policy for details.