Bambu Lab Part Cooling Fan for A1 Series

The Bambu Lab Part Cooling Fan for A1 Series is an original replacement fan designed to cool freshly extruded filament during printing.

Unlike the hotend cooling fan, which controls temperature around the hotend itself, the part cooling fan directs airflow toward the printed model. This helps newly deposited layers solidify quickly, improving overhangs, bridges, small details, and overall dimensional stability.

The FAF006 fan is designed specifically for the Bambu Lab A1 and A1 mini and is suitable for replacing a damaged, noisy, or non-functioning original part cooling fan.

Key Features

• Original Bambu Lab part cooling fan

• Part number FAF006

• Compatible with Bambu Lab A1 and A1 mini

• Cools freshly deposited filament

• Helps improve bridge and overhang quality

• Supports sharper details and better layer definition

• Direct replacement for the original A1 Series fan

• Includes the required mounting screws

Rapid Cooling of Printed Layers

After filament leaves the nozzle, it needs to cool and solidify before the next layer is deposited.

The part cooling fan provides directed airflow over the printed model, helping the material cool faster and maintain its intended shape.

Effective part cooling can improve:

• Overhangs

• Bridges

• Sharp corners

• Small features

• Fine details

• Surface definition

• Dimensional stability

Important for PLA Printing

Strong part cooling is especially useful with PLA and similar materials that benefit from rapid solidification after extrusion.

Without enough cooling, freshly deposited filament can remain soft for too long, resulting in sagging, rounded corners, poor bridges, or reduced detail.

The optimum fan speed depends on the filament type, nozzle temperature, print speed, and model geometry.

Improved Overhang Performance

Overhangs have limited support from the layers underneath.

Cooling the newly extruded filament quickly helps it hold its position before gravity causes it to sag.

A properly functioning part cooling fan therefore contributes to cleaner overhang surfaces and more accurate model geometry.

Better Bridge Printing

During bridging, filament is deposited across an unsupported gap.

Rapid cooling helps the extruded strand solidify while spanning between supported areas, reducing drooping and improving bridge consistency.

Bridge quality also depends on:

• Print speed

• Nozzle temperature

• Bridge flow

• Filament type

• Bridge distance

Better Small Features

Small sections of a model can remain hot because the nozzle repeatedly returns to the same area in a short period.

Part cooling helps remove this heat and gives each layer more time to solidify before the next layer is deposited.

This is particularly useful for:

• Miniatures

• Small towers

• Thin walls

• Fine text

• Sharp tips

• Detailed decorative models

Designed for A1 Series

The FAF006 fan is designed specifically for the Bambu Lab A1 Series.

Compatible printers include:

• Bambu Lab A1

• Bambu Lab A1 mini

Its physical size, mounting arrangement, electrical connection, and airflow path are designed for the A1-series toolhead.

Fans from other Bambu Lab printer families should not be assumed to be interchangeable.

Direct Replacement Component

Replacement may be appropriate if the original fan develops problems such as:

• Fan not spinning

• Reduced airflow

• Abnormal fan noise

• Rattling or grinding

• Damaged fan blades

• Damaged cable or connector

• Fan damaged during a print failure

• Poor model cooling despite correct slicer settings

Installing the correct FAF006 replacement fan helps restore normal part-cooling performance.

Part Cooling Fan vs Hotend Cooling Fan

The A1 Series uses separate fans for different cooling functions.

Part Cooling Fan - FAF006

• Cools the printed model

• Helps layers solidify quickly

• Improves bridges and overhangs

• Supports fine-detail printing

Hotend Cooling Fan - FAF007

• Cools the hotend and heating assembly

• Helps prevent heat creep

• Supports stable filament feeding

• Performs a different thermal-management function

These two fans are not interchangeable.

Technical Specifications

Applications

• Cooling freshly printed layers

• Improving PLA print quality

• Bridge cooling

• Overhang cooling

• Fine-detail printing

• Small-feature printing

• Replacement of damaged fan

• A1 maintenance

• A1 mini maintenance

• Print farm spare-part inventory

Compatibility

Compatible with:

• Bambu Lab A1

• Bambu Lab A1 mini

This is the dedicated A1 Series part cooling fan.

Package Includes

• 1 × Bambu Lab Part Cooling Fan

• 2 × BT2-5 Screws

• 1 × BT2-4 Screw

• 2 × M2-2 Screws

Installation Note

Switch off the printer and disconnect it from power before replacing the fan.

During installation:

• Remove the required toolhead covers

• Disconnect the original fan carefully

• Avoid pulling directly on the wires

• Install the replacement fan in the correct orientation

• Secure it using the supplied screws

• Route the cable correctly

• Ensure the fan blades rotate freely

• Confirm normal fan operation after reassembly

Troubleshooting Note

Poor overhangs or weak model cooling are not always caused by a failed fan.

Similar symptoms may also result from:

• Incorrect fan settings

• Excessive nozzle temperature

• Printing too fast

• Incorrect bridge parameters

• Inappropriate filament profile

• Blocked airflow

• Toolhead wiring problems

Check fan operation and printing settings before replacing components.

Usage Note

This product includes the A1 Series part cooling fan and mounting screws only. The hotend cooling fan, hotend, extruder, toolhead board, and other toolhead components are not included unless separately specified.