Bambu Lab P1S Combo 3D Printer with Automatic Material System

Product Overview

The Bambu Lab P1S Combo is an enclosed fused-filament 3D printing system that combines the P1S CoreXY printer with Bambu Lab’s Automatic Material System, or AMS. The printer provides a 256 × 256 × 256 mm build volume and uses a direct-drive extrusion system with a standard 0.4 mm stainless-steel nozzle. Its enclosed chassis supports common thermoplastics as well as several materials that benefit from a more controlled printing environment.

The P1S has a maximum toolhead speed of 500 mm/s and documented acceleration of up to 20,000 mm/s². Automated features include bed leveling, vibration compensation, filament run-out detection, power-loss recovery, and built-in chamber monitoring. The hotend reaches 300°C, while the heated build plate reaches up to 100°C.

The included AMS holds four filament spools and automatically selects among compatible materials or colors during a print. Multiple AMS units can be combined with appropriate hardware for expanded filament selection. The printer works with Bambu Studio desktop software and Bambu Handy mobile software for print preparation, monitoring, and device management. The P1S is the enclosed member of Bambu Lab’s original P1 Series and was introduced after the open-frame P1P.

Product Information

Identification

Physical

Product Identifier Summary

• Model Number: Identifies the P1S printer platform and helps distinguish it from other Bambu Lab printer families and hardware revisions.
• MPN: A manufacturer part number can identify a specific regional package or hardware configuration. No single configuration-specific MPN is listed here without independent verification.
• UPC: A Universal Product Code is commonly used for retail barcode identification and inventory management. No configuration-specific UPC was independently verified for this package.
• EAN: An EAN is an international retail product identifier related to the GTIN system. No verified EAN was established for this configuration.
• GTIN: A Global Trade Item Number provides standardized identification across commercial supply chains. No separate verified GTIN was established for this configuration.
• ASIN: This catalog identifier distinguishes the referenced P1S Combo configuration within a large online product database.

Common Uses

The P1S Combo is used for producing three-dimensional parts from thermoplastic filament. Its enclosed chamber and automated filament system expand its use beyond basic single-color desktop printing.

• Prototyping mechanical parts
• Producing household replacement components
• Creating educational models
• Printing figurines and decorative objects
• Producing jigs, fixtures, and workshop tools
• Multi-color object fabrication
• Multi-material printing with compatible filament combinations
• Small-batch fabrication of repeated components
• Printing engineering thermoplastics within the machine’s material limits

Maintenance and Care

Regular maintenance helps maintain dimensional accuracy, reliable filament feeding, and smooth mechanical movement. Bambu Lab publishes maintenance procedures for the motion system, extruder, hotend, build plate, carbon rods, lead screws, and AMS.

• Remove filament debris from the build chamber and purge area regularly.
• Clean build-plate surfaces according to the plate manufacturer’s instructions.
• Inspect the nozzle and hotend for accumulated filament or damage.
• Check the extruder and filament path when feeding becomes irregular.
• Clean the carbon rods using the method specified for the P1 Series.
• Lubricate applicable lead screws and mechanical components at recommended intervals.
• Inspect PTFE tubing for excessive wear or deformation.
• Keep AMS feed components free of filament fragments and dust.
• Replace or regenerate AMS desiccant when moisture control declines.
• Keep firmware and Bambu Studio software reasonably current when updates address reliability or compatibility.

Safety Information

The P1S contains moving mechanisms, electrically heated components, and surfaces that can reach temperatures capable of causing burns. Users should keep hands away from the toolhead, build plate, and internal motion system during operation.

• Allow the hotend and build plate to cool before touching heated components.
• Do not reach into the build chamber while the toolhead or build platform is moving.
• Keep loose clothing, hair, and objects away from moving mechanisms.
• Use the printer on a stable surface with adequate clearance around ventilation openings.
• Use appropriate ventilation when printing materials that generate noticeable fumes or ultrafine particles.
• Do not leave damaged wiring, connectors, heaters, or temperature sensors in service.
• Disconnect power before performing maintenance that requires access to electrical components.
• Use filament types and temperatures appropriate for the installed nozzle and hotend.
• Do not modify safety-related thermal controls or electrical protection systems.
• Keep children and pets away from the printer during operation unless appropriately supervised.

Technical Specifications

Product History

Bambu Lab introduced the P1P as the first member of the P1 Series. The enclosed P1S followed in 2023, retaining the same general CoreXY motion platform while adding an enclosed body, chamber cooling hardware, and activated-carbon filtration.

The P1S Combo combines the standard P1S printer with the first-generation Automatic Material System. This configuration provides automated selection among four installed filament spools without changing the fundamental P1S build volume.

In October 2025, Bambu Lab announced the P2S as a substantially redesigned successor within the same general product segment. The P1S remains a separately supported printer with its own replacement parts, firmware, accessories, and documentation.

Key Features

• CoreXY motion architecture
• Enclosed build chamber
• Automatic bed leveling
• High-speed toolhead movement
• Integrated chamber camera
• Filament run-out detection
• Power-loss print recovery
• Activated-carbon air filtration
• Automatic filament selection through the included AMS
• Four-spool AMS capacity
• Automatic identification of compatible RFID-equipped Bambu Lab filament
• Wireless print transfer and monitoring
• Bambu Studio slicing software integration
• Bambu Handy mobile monitoring support

Package Contents

• Bambu Lab P1S 3D printer
• Bambu Lab AMS automatic material system
• 0.4 mm stainless-steel hotend assembly installed in the printer
• Build plate
• Spool holder
• AMS connection cables
• PTFE tubing
• Power cable
• Accessory and maintenance components
• Quick-start documentation

Compatibility

The P1S uses 1.75 mm filament. Bambu Lab classifies PLA, PETG, TPU, PVA, and PET among materials well suited to the printer, while PA, PC, ABS, and ASA can also be used within appropriate process conditions.

The included first-generation AMS supports several rigid filament types but is not suitable for every flexible, abrasive, brittle, or dimensionally inconsistent filament. TPU and certain reinforced materials may need to be fed externally rather than through this AMS.

The P1S works with Bambu Studio for slicing and print preparation. It can also accept appropriately generated G-code through supported workflows, while Bambu Handy provides mobile access to compatible monitoring and printer-management functions.

Frequently Asked Questions

How can I identify the P1S Combo?

The printer itself is identified as the P1S. The word Combo indicates a package that includes an Automatic Material System rather than a different printer chassis.

What is the difference between the P1S and P1S Combo?

The core printer is the same P1S platform. The Combo package adds the AMS and the connection components required for automatic multi-filament operation.

Does the P1S need to be assembled?

The printer arrives largely assembled. Initial setup includes removing transport restraints, installing or connecting accessories, preparing the build platform, and completing the startup calibration process.

Can the P1S print without the AMS?

Yes. The P1S can print from a single external filament spool without using an AMS.

Can the AMS print four colors?

Yes, when the selected filaments are mutually compatible with the print and AMS. The system automatically switches among the four loaded filament positions as instructed by the sliced model.

Can more than one AMS be connected?

The P1 Series can support multiple AMS units with the appropriate connection hardware. This allows a larger number of filament positions than the four provided by one AMS.

Can TPU be used with the P1S?

TPU can be printed by the P1S, but conventional flexible TPU is generally fed through the external spool path rather than the first-generation AMS. Flexible materials can buckle or bind in automated feed mechanisms.

Can carbon-fiber filament be printed?

Some reinforced filaments can be used after installing hardware appropriate for abrasive materials. The standard stainless-steel nozzle and standard extrusion components are not the preferred configuration for many abrasive fiber-filled filaments.

Does the enclosure heat itself?

The P1S has an enclosed chamber but does not use a dedicated actively heated chamber system. Chamber temperature rises primarily from the heated build plate and printing process.

Does the printer have a camera?

Yes. A built-in chamber camera provides basic remote observation and time-lapse functionality. Its frame rate is substantially lower than that of newer high-frame-rate camera systems.

Does the printer require an internet connection?

Some cloud-based and remote functions use network services, but Bambu Lab also provides local-network and offline-oriented workflows for supported use cases. Available functions depend on software and firmware configuration.

Can third-party filament be used?

Yes. Standard 1.75 mm third-party filament can be used when its material, spool dimensions, temperature requirements, and mechanical characteristics are compatible with the printer or AMS.

Does the AMS automatically dry filament?

The original AMS primarily provides enclosed filament storage with desiccant rather than an active heated drying process. Wet filament should be dried using an appropriate external method before printing when necessary.

Why does multi-color printing produce purge material?

A single-nozzle printer must remove the previous filament from the melt path before a different color or material reaches the nozzle. This transition process generates purge material during filament changes.

Can the build plate be replaced?

Yes. Bambu Lab provides compatible replacement build plates and different surface types. Slicer settings should match the installed plate because surface and temperature requirements vary.

Does the P1S have automatic calibration?

The printer automates several calibration procedures, including bed leveling and vibration-related compensation. Some material and flow settings can still require adjustment for particular third-party filaments or specialized applications.

What maintenance is most important?

Build-plate cleanliness, nozzle condition, filament-path condition, motion-system cleanliness, and proper lubrication of designated components are important for reliable operation. Maintenance frequency depends on printing hours and operating conditions.

Buying Considerations

The P1S Combo combines an enclosed printer with an automated four-spool filament system, so workspace requirements include room for both devices and access to the AMS lid. The AMS is commonly positioned above the printer, although alternate arrangements can be used with compatible tubing and cable routing.

Material choice affects hardware requirements. Basic PLA and PETG printing places different demands on the printer than abrasive carbon-fiber blends, high-temperature engineering materials, or very flexible filaments. Nozzle material, filament path, ventilation, and AMS compatibility should therefore be evaluated together.

Multi-color printing can increase print duration and material consumption because filament must be purged during color transitions. Models with frequent color changes generally generate more discarded transition material than single-color objects.

The P1S also belongs to an earlier Bambu Lab generation than the P2S and newer printer families. Users comparing platforms should consider camera capability, user interface, material handling, available replacement parts, and compatibility with newer AMS hardware.

Customer Feedback Summary

This section summarizes recurring themes in publicly available owner discussions and reviews. These observations represent generalized user experiences and are not verified technical specifications.

Positive feedback frequently focuses on straightforward initial setup, consistent automatic bed leveling, rapid printing, and the integration between the printer, slicer, and AMS. Owners also commonly describe the enclosed design as useful when moving from PLA and PETG toward materials such as ABS or ASA.

The AMS is often praised for reducing manual filament changes and making multi-color printing easier to manage. Users also report that storing several commonly used spools in the system simplifies routine filament selection.

Recurring limitations include purge waste during multi-color work, additional print time from frequent filament changes, and noise from high-speed motion and cooling fans. Some owners also find the low-frame-rate camera less useful for smooth real-time monitoring than newer camera systems.

Other reported issues concern filament compatibility in the first-generation AMS. Flexible, brittle, abrasive, or unusually sized filament can require external feeding or additional care. User experiences vary according to material brand, spool design, maintenance, environmental conditions, and print settings.

Related Products

• Bambu Lab P1S 3D Printer without AMS
• Bambu Lab P1P 3D Printer
• Bambu Lab P2S 3D Printer
• Bambu Lab X1 Carbon 3D Printer
• Bambu Lab X1 Carbon Combo
• Bambu Lab A1 3D Printer
• Bambu Lab AMS Automatic Material System
• Bambu Lab AMS 2 Pro Automatic Material System
• Bambu Lab AMS HT Automatic Material System

Last Updated

August 16, 2026