Введение в модули и руководство по подключению AMS 2 Pro

Introduction to each module

Appearance and 3D dimension diagram

Filament slots

The AMS 2 Pro has four filament slots, each with one feeder inside. It has a separate motor and gears to push the filament forward or pull it back to the spool, and a sensor to detect the filament. When the filament is inserted, the feeder pulls the filament inward. When it needs to pull the filament back into the spool, the drive shaft will turn the spool to rewind it. Ceramic-reinforced anti-wear bushings are embedded in each feeder inlet to better protect the inlet from being worn by the filament after prolonged use.

Internal hub

The internal hub is located at the rear of AMS 2 Pro and consists of four Hall sensors, a magnetic rotary encoder, and a brushless motor. It merges four filament slots into one. The Hall sensor detects when the filament reaches a specific position and activates the brushless motor to provide a second-level driving force for feeding the filament.

Buffer

The AMS 2 Pro and printer need to be connected via a buffer, which consists of a slider, a spring, and a Hall sensor. When the AMS pushes the filament into the extruder, the slider moves forward due to the pressure of the filament. The Hall sensor detects the slider's position, and the buffer sends the signal back to the AMS and the printer. By controlling the feeding speed of the AMS, the tension of the filament can be kept within a controlled range, allowing the extruder to work smoothly and precisely.

The H2D printer comes with a built-in feeding buffer, which also includes a filament sensor inside. This sensor can detect whether the filament is passing through the buffer or if the filament has broken inside the buffer. Additionally, when printing with an external spool, the buffer also features a tangle detection function, which can detect whether the external spool has tangled filament.

If you need to connect the AMS 2 Pro to an X1 or P1 series printer, either a магазин Bambu Lab or магазин Bambu Lab is required. If purchased as part of a P1 or X1 and AMS combo, a filament buffer is included with the purchase.

If you need to connect the AMS 2 Pro to an A1 series printer, you will need to purchase an магазин Bambu Lab separately. Do not use a Filament Buffer or other AMS Hub that is not designed for A1 to connect, as this may cause malfunction or damage to the buffer or the hub, in which case they will not be covered under warranty.

Moisture-proof system

Humidity sensor

The AMS 2 Pro is equipped with a humidity sensor in front of it, which detects humidity and temperature in the AMS cabin. You can check the current humidity status of AMS 2 Pro in the printer's display /Bambu Studio/Bambu Handy.

Drying module

The AMS 2 Pro has two drying modules, consisting of heaters, fans, and temperature sensors, with a maximum drying temperature of 65 ℃.

Internal circulation system

The drying module is located under the AMS main frame. During drying, the hot air is blown out of the inner circulation outlets (near the internal hub), and after heating the filament, the air is sucked into the heating module from the front two inner circulation inlets, and then heated again to form a set of the inner circulation system.

Air Vents

The AMS 2 Pro is equipped with two actively controlled air vents: the bottom vent is the intake, and the rear vent is the exhaust.

During drying, the AMS 2 Pro expels moisture through external circulation. Ensure the vents are not blocked for optimal drying performance.

Desiccant and sealing rubber ring

AMS 2 Pro is equipped with a color-changing silicone desiccant at the factory, which absorbs moisture and keeps the air inside AMS dry. After the desiccant absorbs sufficient moisture, the yellow particles inside will turn purple. When the desiccant turns purple, it needs to be replaced with a new desiccant, or the moisture-absorbing desiccant needs to be dried and reused.

The sealing rubber ring between the upper cover and the outer shell can maintain AMS sealing, preventing external moisture from entering and causing the filament to absorb moisture.

When the air humidity exceeds the AMS preset standard, the humidity sensor will detect and alert the user.

Note: The desiccant should be removed from the sealed transparent plastic bag before being placed in the AMS 2 Pro.

Power adapter

Connect the H2 series printer to a single AMS 2 Pro using a 6-pin cable to use the AMS 2 Pro's drying function. If you need to dry the filaments in more than one AMS 2 Pro at the same time, you will need to use the Bambu Lab official power adapter to power the remaining AMS 2 Pro.

Warning! Be sure to use the new 6-pin cable included with AMS 2 Pro and AMS HT. Using the 6-pin cable from the previous generation AMS may cause unstable communication between the AMS and the printer, while the previous generation AMS is compatible with the new 6-pin cable. Also, using third-party power adapters may result in insufficient power delivery, unstable operation, or potential damage to the machine.

If the X1 or P1 series printer is used with the AMS 2 Pro and uses the AMS 2 Pro's drying function, each AMS 2 Pro requires an official Bambu Lab power adapter to power it. The use of the power adapter is shown in the following figure:

RFID system

The AMS 2 Pro has two RFID coils, which can recognize the RFID tags on the official Bambu Lab filament and enable functions such as filament remaining estimation and auto filament backup.

PTFE adapter

PTFE tube can connect 4 feed tubes to the printer at the same time. When connecting multiple AMS 2 Pro to H2 series printers, the PTFE adapter is required.

Connect and configure AMS 2 Pro

Methods for Connecting Multiple AMS Units to X1/P1 series/P2S printers

Bambu Lab printers support connecting more than one AMS unit.
This allows you to store and feed a wider variety of filaments without manual swapping.

For X1/P1 series printers, there are two main connection methods: using the AMS Hub (recommended) or using a PTFE Tube Adapter.

• Method 1 — Using the AMS Hub (Recommended)

The магазин Bambu Lab is designed for stable and efficient multi-AMS connections. It ensures smooth filament switching and minimizes feeding errors.

For a complete walkthrough, refer to: Connecting the AMS Hub and Multiple AMS Units

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• Method 2 — Using the PTFE Tube Adapter

You can also connect multiple AMS units through a PTFE Tube Adapter: магазин Bambu Lab. For detailed connection methoed, please refer to steps below.

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Required Tools & Parts

• 1 × Bambu Lab printer
• 2 or more AMS 2 Pro or AMS units
• Several PTFE tubes (cuttable to length)
• PTFE Tube Adapter
• P2S Filament Buffer (Applicable to P2S printer)
  
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Installation Guide

Step 1 — Preparation

1. Power off all AMS units and stop the printer.
2. Confirm the Filament Buffer is securely installed on the printer. For P2S Filament Buffer installation guide, please refer to Filament Buffer Replacement Guide for the P2S.
3. Gather all PTFE tubes and cut them to the required lengths.
   • Pre-cut a 10 cm PTFE tube for connecting the adapter to the buffer.

Step 2 — Connect PTFE Tubes to the AMS Units

Insert PTFE tubes into the rear push-fit connectors on each AMS unit.
Push until you feel resistance, then check for a secure fit.

Step 3 — Install the PTFE Tube Adapter

1. Position the adapter on the left side of the Filament Buffer.
2. Insert the PTFE tube from each AMS unit into the adapter’s input ports.
3. Push firmly until the connection is tight and there is no wobble.

5. Take the pre-cut 10 cm PTFE tube.
6. Insert one end into the output port of the PTFE Tube Adapter.
7. Insert the other end into the left-side input port of the Filament Buffer.

Step 4 — Connect the Printer

Insert the printer’s original PTFE tube into the output port of the Filament Buffer.

Step 5 — Final Checks

• Gently pull on each PTFE connection to confirm it’s locked in place.
• Power on the AMS units and the printer.
• Load filament from each AMS slot to confirm smooth feeding.
• Run a small test print to verify proper switching between filaments.

Tips for Best Performance

• Avoid sharp bends in PTFE tubes — keep curves gentle.
• Store AMS units on the same level as the printer to reduce gravity-related tension.
• Periodically check tube ends for wear and trim if necessary.

End Notes