for Bambu Lab - P2S External Exhaust Fan Kits

Important Notice Before Purchase
 Optimizing Your P2S Experience

To ensure a premium experience for our early adopters, the Updated Rear Panel is now available as a complimentary option. While newer P2S units include this panel pre-installed, both versions are fully compatible with the External Exhaust Fan Kit.

 How to Choose: Please identify your panel version via the [Bambu Lab Wiki] before ordering:

1. If you have the Updated Rear Panel: You only need the External Exhaust Fan Kit.

 2. If you have the Original Rear Panel:

Recommended: Add the Updated Rear Panel with External Exhaust Fan Kit for optimized exhaust efficiency.

Standard: The External Exhaust Fan Kit can also be installed directly onto your original rear panel if standard performance meets your needs.

1. The P2S Printer comes with a built-in recirculating air filtration system as standard, which relies on an internal activated carbon filter to purify the air inside the printing chamber. Designed specifically for users with strict exhaust requirements, the External Exhaust Fan Kit adds an active external exhaust function to the P2S after installation, delivering more efficient directional air extraction performance.

2. This kit achieves seamless integration with the printer. Once installed, the printer can automatically switch its operating mode based on the type of filament being used. Meanwhile, users can also manually adjust the operating mode via the printer’s touchscreen, Bambu Studio software, or Bambu Handy mobile app.

3. With the kit installed, the P2S gains an automatic post-print air purification feature. For engineering-grade filaments that require enclosed printing (such as ABS, PA, etc.), simply enable the "Purify Air After Printing" option in the printer’s settings menu. The P2S will then automatically activate the external exhaust mode upon print completion, thoroughly expelling any residual fumes from the chamber.

4. The External Exhaust Fan Kit supports expandable air filter cartridges, which are available for optional purchase according to users' needs.

5. If you own the P2S Printer without AMS, you will need to purchase an additional buffer accessory to use this exhaust fan kit.

In the Box

- External Exhaust Fan*1

- External Exhaust Fan Circuit Board*1

- 6-Pin Cable*1

- BT2-5 Screw*26

- M3×6 Screw*3

Compatibility

P2S

P2S External Exhaust Fan Installation Guide

This guide will detail the steps and precautions for installing the External Exhaust Fan Kit on your P2S printer.

The P2S printer adopts an internal circulation exhaust gas treatment design as standard, relying on an internal Activated Carbon Air Filter for exhaust purification. After installing the External Exhaust Fan Kit, the device will add an active exhaust function, providing a solution for users with strict exhaust requirements. For users with exhaust conditions, this kit can directly guide printing exhaust to the outdoors or a designated area.

Once installed, the printer will automatically recognize the External Exhaust Fan Kit, integrate it into the air conditioning system for unified control, and unlock the automatic air purification function after printing. For engineering materials requiring sealed printing such as ABS and PA, simply enable the "Purify Air After Printing" function in the printer's screen settings. The P2S will automatically activate the exhaust mode after printing to completely discharge residual gas inside the chamber.

Software Requirements: Before official installation, complete the following software version upgrades to ensure device compatibility:

Printer firmware version must be upgraded to 01.01.01.00 or higher;

Desktop Bambu Studio must be updated to V2.4.1.80 or higher;

Mobile Bambu Handy must be updated to V3.11.0 or higher.

Installation Plan Description

Two optional installation plans are provided for the P2S printer's external exhaust fan, adapting to different user needs:

Plan 1: Replace with Dedicated Rear Panel

The exhaust port is located below the buffer, featuring a more reasonable air flow channel design and higher exhaust efficiency.

Plan 2: Reuse Original Printer Rear Panel

The exhaust port is set on the right side of the Purge Chute. Official tests have confirmed that this plan can meet the normal exhaust needs of daily printing.

Pre-Installation Preparation

Materials and Tools

External Exhaust Fan Kit (Note: 6-PIN cable length is 300mm)

H2.0 screwdriver, H1.5 screwdriver

100mm outer diameter smoke ventilation pipe, pipe clamp (optional)

If you purchased the standalone P2S printer, you need to purchase an additional Filament Buffer to use this kit.

Required 3D-Printed Parts

The following printed parts are recommended to be printed with high-temperature materials such as PETG, ABS, or PC.

External Exhaust Fan Housing:

External Printed Parts for External Exhaust Fan:

Physical Image:

Important Notes

Before installation, the following software upgrades are required to ensure device compatibility:

1. Printer firmware version must be upgraded to 01.01.01.00 or higher;

2. Bambu Studio must be updated to V2.4.1.80 or higher;

3. Bambu Handy must be updated to V3.11.0 or higher.

This kit requires users to print the outer casing accessories themselves. Please search for "P2S Exterior Fan Installation Guide" on the Topzhu official website (Wkⅵ) and refer to the tutorial to complete the installation.

The external exhaust fan kit features a suspended buffer structure design, effectively isolating fan vibration and ensuring unaffected print quality.

The P2S printer uses an internal circulating air handling system by default, relying on an internal activated carbon filter for air filtration. The external exhaust fan kit provides a solution for users with strict exhaust requirements. With the kit installed, the P2S gains an active exhaust function, resulting in better directional exhaust.

* This kit integrates seamlessly with the printer. After installation, the printer automatically switches operating modes based on the type of consumables used. Users can also manually set the operating mode on the printer screen/in Bambu Studio/Bambu Handy.

* With the kit installed, the P2S will have an automatic air purification function after printing. For engineering materials requiring sealed printing (such as ABS, PA, etc.), enabling "Purify Air at End of Printing" in the printer screen settings w.