BAMBULAB Bambu Lab P1S Enclosed 3D Printer vs BAMBULAB Bambu Lab A1 FDM 3D Printer (2026): Key Differences
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When comparing the bambulab bambu lab p1s 3d printer vs bambu lab a1 3d printer, you see two FDM models from the same brand. Both offer automatic calibration and multi-color capabilities with add-ons. The main difference lies in their build environment and target use. The P1S features an enclosed design for advanced materials, while the A1 is an open-frame printer aimed at beginners. Their physical dimensions and weights also vary significantly, affecting where you can place them.
Key differences
| Aspect | Bambu Lab P1S Enclosed 3D Printer | Bambu Lab A1 FDM 3D Printer |
|---|---|---|
| Print Speed | 500mm/s | Not listed |
| Acceleration | 20000 mm/s² | 10000 mm/s² |
| Structure | Enclosed | Open-frame |
| Color | Black | Grey |
| Dimensions | 18 x 15.3 x 15.3 inches | 20.8 x 21.8 x 12.9 inches |
| Weight | 39 pounds | 22 pounds |
Which one should you choose?
Choose Bambu Lab P1S Enclosed 3D Printer if
- You need to print with advanced materials like ABS, ASA, or PC that require an enclosed chamber.
- You prioritize higher acceleration speeds for faster print completion times.
- You want a more compact footprint with a smaller width dimension.
Choose Bambu Lab A1 FDM 3D Printer if
- You are a beginner or printing for kids and prefer a lighter, easier-to-move machine.
- You want active flow rate compensation for smoother surface finishes without extra steps.
- You value a quieter printing environment with active motor noise canceling.
Verdict: The P1S is the better choice for users who need to print with engineering plastics that require an enclosed environment. The A1 suits beginners who want a lighter, quieter machine for standard filaments like PLA and PETG. Your decision depends on whether material versatility or ease of use is more important to you.
P1S vs A1: Key Specs Compared
print speed
The Bambu Lab P1S offers a maximum print speed of 500mm/s with an acceleration of 20,000 mm/s². This allows for rapid production of complex geometries without sacrificing layer adhesion. The Bambu Lab A1 features a maximum speed of 500mm/s as well, but its acceleration is rated at 10,000 mm/s². While both machines share the same linear speed limit, the P1S doubles the acceleration capability. Higher acceleration reduces the time spent on starts and stops during intricate moves. You will notice the P1S completes jobs faster due to this superior acceleration spec.
build volume
Physical dimensions indicate the footprint and potential build area. The Bambu Lab P1S measures 18 inches in width, 15.3 inches in height, and 15.3 inches in length. The Bambu Lab A1 is larger in overall footprint, measuring 20.8 inches in width, 12.9 inches in height, and 21.8 inches in length. The data does not explicitly list the internal build volume dimensions for either model. However, the P1S is an enclosed unit, which often correlates with a standardized, compact build chamber. The A1 is an open-frame design. You should check the specific build volume cubic inches if large parts are a priority, as the external dimensions alone do not confirm the usable space.
color printing
Both printers support multi-color output, but the capacity differs significantly. The Bambu Lab P1S supports up to 16 colors when connected to the Bambu Lab AMS. This requires the separate AMS accessory. The Bambu Lab A1 supports multi-color printing using the AMS lite. The data does not specify the maximum color count for the A1 with AMS lite, but it is generally limited compared to the full AMS. The P1S offers a higher maximum color capacity of 16. If you need complex, multi-material projects with many distinct colors, the P1S provides a more robust solution with its higher capacity system.
structure
The physical construction of the printer affects print stability and material compatibility. The Bambu Lab P1S features a fully enclosed design. This enclosure helps maintain a consistent temperature inside the print chamber, which is critical for advanced filaments like ABS, ASA, and PC. The Bambu Lab A1 is an open-frame printer. It lacks an enclosure, making it suitable for standard materials like PLA, PETG, and TPU. The P1S is also heavier, weighing 39 pounds compared to the A1's 22 pounds. The extra weight and enclosure provide better thermal stability for engineering plastics.
leveling
Both machines automate the initial setup process to ensure quality prints. The Bambu Lab P1S utilizes Automatic Bed Leveling. This system adjusts the nozzle distance to the bed before printing. The Bambu Lab A1 uses Full-Auto Calibration. This process includes automatic bed leveling, precise Z-offset calibration, and other adjustments. The A1 also features Active Flow Rate Compensation to maintain consistent extrusion. While the P1S handles bed leveling automatically, the A1 description suggests a more comprehensive calibration suite that includes flow rate adjustments. The A1 offers a broader set of automatic calibration features.
Which 3D Printer fits your needs best
Users printing high-temp materials like ABS
The P1S features a fully enclosed design, which is essential for stabilizing temperatures during printing. This enclosure supports advanced filaments such as ABS, ASA, and PC. If you need to work with these materials, the enclosed chassis provides the necessary thermal consistency that the open-frame A1 cannot offer.
Beginners wanting quiet, easy setup
The A1 is designed for beginners and kids, featuring active motor noise canceling for a quiet environment. It includes full-auto calibration and active flow rate compensation to ensure smooth prints. With a 1-clip quick swap nozzle, maintenance is simple, making it an ideal starter machine for new users.
Those needing fast production speeds
The P1S delivers higher performance with a print speed of 500mm/s and acceleration of 20,000 mm/s². This allows for rapid production of complex geometries. If speed is your priority for getting projects done quickly, the P1S hardware provides the acceleration needed for faster output compared to the standard A1.
The products compared
Bambu Lab P1S Enclosed 3D Printer
Best for: Enclosed high-speed printing with multi-color options
- Print Speed
- 500mm/s
- Printing Technology
- FDM
- Multicolor Capacity
- Up to 16 Colors
- Leveling Type
- Automatic Bed Leveling
- Motion Structure
- CoreXY
- Features
- High Speed, Enclosed
View on Amazon: Bambu Lab P1S Enclosed 3D Printer Affiliate link
The Bambu Lab P1S is a ready-to-use FDM 3D printer featuring a fully enclosed design. It supports print speeds up to 500mm/s with 20,000 mm/s² acceleration. You can achieve multi-color prints with up to 16 colors when using the AMS. The unit includes automatic bed leveling and sets up in about 15 minutes. It is suitable for beginners and advanced users needing reliable performance.
Pros
- Enclosed design for advanced filament printing
- Print speeds up to 500mm/s
- Supports up to 16 colors with AMS
- Automatic bed leveling included
Cons
- Heavier build at 39 pounds
- Multi-color printing requires separate AMS unit
- Carbon fiber reinforced polymers not recommended
Good fit if
- You need an enclosed printer for ABS or ASA
- You want fast print speeds up to 500mm/s
- You plan to use multi-color printing with AMS
Skip if
- You require carbon fiber reinforced filament support
- You prefer a lighter, more portable unit
- You want multi-color capability without extra hardware
Verdict: Bambu Lab P1S Enclosed 3D Printer is ideal for users who need speed and an enclosed chamber for engineering materials. It suits those ready to invest in the AMS for complex multi-color projects.
Bambu Lab A1 FDM 3D Printer
Best for: beginners and quiet home printing
- Printing Technology
- FDM
- Leveling Type
- Full-Auto Calibration
- Target Audience
- Beginners, Kids
- Color
- Grey
- Dimensions
- 21.8 × 20.8 × 12.9 inches
- Weight
- 22 pounds
View on Amazon: Bambu Lab A1 FDM 3D Printer Affiliate link
The Bambu Lab A1 is a ready-to-use FDM 3D printer designed for beginners and kids. It features high-speed precision with 10,000 mm/s² acceleration and full-auto calibration for seamless operation. The unit measures 20.8 x 21.8 x 12.9 inches and weighs 22 pounds. It supports multi-color printing when paired with the optional AMS lite accessory. This model offers active flow rate compensation and quiet operation for reliable results.
Pros
- 10,000 mm/s² acceleration for fast printing
- Full-auto calibration removes manual setup
- Active flow rate compensation ensures accuracy
- Quiet operation with active motor noise canceling
Cons
- No enclosed build chamber
- Multi-color printing requires separate AMS lite
- Open-frame design limits material options
Good fit if
- You want a beginner-friendly FDM printer
- You prefer automatic calibration features
- You need quiet operation for home use
Skip if
- You require an enclosed build chamber
- You need multi-color printing without extra hardware
- You want to print with high-temperature materials
Verdict: The Bambu Lab A1 FDM 3D Printer suits beginners seeking an easy, quiet, and fast printing experience. Its open design and reliance on optional accessories for multi-color work make it less suitable for advanced users.
Specifications side by side
| Spec | Bambu Lab P1S Enclosed 3D Printer | Bambu Lab A1 FDM 3D Printer |
|---|---|---|
| Print Speed | 500mm/s | not stated |
| Printing Technology | FDM | FDM |
| Multicolor Capacity | Up to 16 Colors | not stated |
| Leveling Type | Automatic Bed Leveling | Full-Auto Calibration |
| Motion Structure | CoreXY | not stated |
| Structure | CoreXY | not stated |
| Features | High Speed, Enclosed | not stated |
| Target Audience | Beginners | Beginners, Kids |
| Color | Black | Grey |
| Dimensions | 15.3 × 18 × 15.3 inches | 21.8 × 20.8 × 12.9 inches |
| Weight | 39 pounds | 22 pounds |
| Size | P1S (Without AMS) | A1 |
| Model | P1S | PF002-A |
Frequently asked questions
Is the Bambu Lab P1S better for engineering materials than the A1?
Yes, the P1S is the superior choice for engineering-grade filaments. Its fully enclosed chamber stabilizes internal temperatures, which is critical for materials like ABS, ASA, and polycarbonate. The A1 lacks this enclosure, making it less suitable for high-temperature prints that require consistent heat retention to prevent warping.
Which printer is more compact for small workspaces?
The Bambu Lab A1 is the more compact option for tight spaces. It measures 20.8 inches in width and 12.9 inches in height, weighing only 22 pounds. In contrast, the P1S is wider at 18 inches but taller at 15.3 inches and significantly heavier at 39 pounds, requiring more floor space and structural support.
Can I use multi-color printing with the Bambu Lab A1?
You can achieve multi-color printing with the A1, but it requires purchasing the Automatic Material System (AMS) as an optional accessory. The printer itself does not include this hardware. The P1S also supports multi-color workflows via the AMS, offering a similar capability for users who need complex color projects.
Is the Bambu Lab A1 suitable for beginners?
Yes, the A1 is designed specifically for beginners and kids. It offers a quiet, easy-to-use experience with an open design that simplifies access to the build plate. The P1S targets users who need speed and enclosed printing for advanced materials, making the A1 the more approachable entry point for new users.
What is the difference in build volume dimensions between the two?
The P1S measures 15.3 inches in length and width, with a height of 15.3 inches. The A1 has a slightly larger footprint at 21.8 inches in length and 20.8 inches in width, though it is shorter at 12.9 inches in height. These dimensions affect how you place the printer in your workspace.
Does the P1S offer faster printing speeds than the A1?
The P1S is built for high-speed production with a maximum print speed of 500mm/s and acceleration of 20,000 mm/s². While the A1 is also fast, the P1S specifications prioritize rapid output for complex geometries. This speed advantage makes the P1S ideal for users who need to produce parts quickly.
Which printer is heavier and requires a sturdier table?
The Bambu Lab P1S is heavier at 39 pounds, compared to the A1 at 22 pounds. You should ensure your work surface can support the P1S weight comfortably. The A1 is lighter and easier to move, making it a better fit for portable setups or lighter-duty furniture.
Do both printers use FDM technology?
Yes, both the Bambu Lab P1S and the A1 use FDM printing technology. They share core features like automatic calibration and reliable layer adhesion. The primary differences lie in their build environments, target audiences, and physical dimensions rather than the fundamental printing method used to create objects.