Bambu Lab P1S Cooling Fans: The Ultimate Guide

Bambu Lab P1S Cooling Fans: The Ultimate Guide

Welcome to the world of advanced 3D printing with Bambu Lab’s cutting-edge P1S Cooling Fans. Dive into the intricate details of how these cooling fans revolutionize the printing process, ensuring optimal performance and durability. From heat dissipation to airflow patterns, discover how these fans can elevate your printing experience to new heights.

Exploring Bambu Lab P1S Printer Cooling Fans

The Bambu Lab P1S printer comes equipped with several cooling fans that play crucial roles during the printing process. Let’s explore these fans:

  1. Auxiliary Part Cooling Fan:

    • The Auxiliary Part Cooling Fan is designed to aid auxiliary heat dissipation and work in conjunction with the front housing assembly to achieve high-speed printing. It minimizes vibration and is made from high-quality materials.
    • Specifications:
      • Voltage / Operation Voltage: 24 V / 15 V~27 V
      • Materials: Plastic, Metal, Rubber
      • Rated Speed: 3200 rpm/min
      • Max Air Flow: 41.03 CFM
      • Expected Life: 20,000 hours at 40°C
      • Color: Black
    • Installation guides are available for different printer models:
  2. Cooling Fan for Hotend:

    • The Cooling Fan for Hotend is specifically used to cool and reduce the temperature of the ceramic heater. It features an auto-shutoff function when locked at the rated voltage for 1-3 seconds, with subsequent restart attempts within 2 to 6 seconds.
    • More details can be found here.
  3. Part Cooling Fan (A1 Series):

    • The Part Cooling Fan ensures adequate cooling of the printed layers during the printing process. It rapidly cools the extruded material, allowing each layer to solidify before the next layer is deposited.
    • Learn more about the A1 Series Part Cooling Fan here.

Importance of Cooling Fans in Electronics

Cooling fans play a crucial role in preventing electronics from overheating and extending their lifespan. Let’s delve into the details:

  1. Heat Dissipation: Electronic components generate heat as they process data and perform tasks. Cooling fans drive a steady stream of cooler air across these components, absorbing the excess heat and carrying it away from sensitive devices. This process prevents heat accumulation and mitigates the risk of overheating.

  2. Heat Spreaders: Another effective strategy involves using heat spreaders. These are layers designed to promote the spread and dissipation of heat inside electronic devices. Researchers have developed innovative heat spreaders comprised of an electrical insulating layer called Parylene C and a coating of copper.

    Unlike standard heat spreaders, which are usually added on top of the device, these conformal coating heat spreaders cover the entire electronic device, including the top, bottom, and sides. This comprehensive coverage provides more routes for heat to escape, resulting in better cooling performance.

  3. Airflow Patterns: Cooling fans are strategically positioned to create airflow patterns that channel hot air away from sensitive components. They replace it with cooler ambient air, effectively reducing the internal temperature of the electronic cabinet. By fostering this exchange of air, cooling fans prevent overheating and associated risks.

A black square cooling fan with a four-pin connector on the right and a white background with black text reading 3 Key Factors That Influence Cooling Fan Life Expectancy.

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Essentials for Optimal Fan Performance

Properly arranging your case fans can significantly impact your system’s cooling efficiency. Let’s dive into the essentials for optimal fan performance:

  1. Fan Basics:

    • Pre-Installed Fans: Most PC cases come with pre-installed fans. Typically, there’s a rear fan for exhaust, pushing hot air out of the case. The quality of these fans varies, so consider upgrading if needed.
    • Fan Size: Common fan sizes are 120mm and 140mm. Larger fans (e.g., 200mm) move the same air volume at lower RPM, reducing noise.
    • CFM, RPM, and Noise:
      • CFM (Cubic Feet Per Minute): Measures the air movement capacity. A good case fan usually outputs over 50 CFM.
      • RPM (Rotations Per Minute): Determines how fast the fan spins. Higher RPM moves more air but can be noisier. Aim for fans below 30dB to avoid excessive noise.
      • Balance: Look for fans that strike a good balance between CFM and noise levels.
  2. Fan Placement:

    • Intake vs. Exhaust:
      • Intake Fans: These bring fresh air into the case. Place them at the front or bottom.
      • Exhaust Fans: These expel hot air. Position them at the rear or top.
    • Optimal Setup:
      • Front: Intake fans here cool components like the CPU and GPU.
      • Rear: An exhaust fan here helps remove hot air.
      • Top: If your case has top vents, consider placing exhaust fans there.
      • Side Panel: If available, side intake fans can cool the GPU.
      • Bottom: Intake fans here can help cool the PSU and other components.
  3. Fan Orientation:

    • Front and Side Intake Fans: Point them towards the interior of the case.
    • Rear and Top Exhaust Fans: Point them outward to expel hot air.
    • Positive vs. Negative Pressure:
      • Positive Pressure: More intake than exhaust. Helps keep dust out.
      • Negative Pressure: More exhaust than intake. Can lead to dust buildup but better cooling.
  4. Fan Curves and Control:

    • BIOS Settings: If your system supports it, create a custom fan curve. Balance cooling performance with noise levels.
    • Fan Controllers: Use software or hardware controllers to adjust fan speeds.

For more detailed instructions, check out this Tom’s Hardware guide.

A diagram showing the airflow in a computer case with two exhaust fans on top, three intake fans on the front, and a CPU fan in the middle.

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Bambu Lab P1S 3D Printer Review

Let’s delve into the Bambu Lab P1S and explore what customers have to say about it.

The Bambu Lab P1S is a 3D printer that has garnered attention for its impressive features. Here’s a summary of what reviewers have highlighted:

  1. Blazing Speed: The P1S boasts Core XY speed, making it a favorite among users who prioritize fast printing. It can achieve speeds of up to 500mm/s with a blazing acceleration of 20,000 mm/s.

  2. Materials Versatility: This printer can handle a wide range of materials, including PLA, TPU, ABS, and PC (with a maximum temperature of up to 300 degrees Celsius).

  3. Auto Bed Leveling: The P1S features one of the best auto bed leveling systems, ensuring precise prints and ease of use.

  4. Enclosed Design: With a fully enclosed structure, the P1S is suitable for high-temperature printing and provides a stable environment for consistent results.

  5. Optional 4 Color AMS: Users can access Bambu Lab’s popular AMS system, allowing them to print in up to 16 colors.

However, it’s essential to consider both the pros and cons:


  • Speed: The P1S offers blazing speed.
  • Enclosure: It comes with an enclosure for high-temperature printing.
  • Auto Bed Leveling: The bed leveling system is top-notch.
  • Optional 4 Color AMS: Users can experiment with multiple colors.


  • Noisy: Some users find it noisy during operation.
  • Proprietary Replacement Parts: Availability of replacement parts may be limited.
  • AMS Filament Waste: The AMS unit can lead to filament wastage.

The P1S retails at $699, which is significantly more affordable than the deluxe X1 Carbon (priced at $500 more). While the X1 Carbon offers additional features like more sensors, a better screen, and a higher-quality camera, the P1S still impresses with its performance and affordability.

In the box, you’ll find everything needed to set up the P1S, along with some extra parts. If you’re looking for a reliable 3D printer that balances speed, quality, and versatility, the Bambu Lab P1S is worth considering.

Please note that customer reviews on platforms like Trustpilot may provide additional insights from users who have hands-on experience with the printer

Customer Reviews and Feedback

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Comparing Bambu Lab’s P1S Cooling Fans

Let’s delve into the comparison of Bambu Lab’s P1S Cooling Fans with its competitors. Here are the key features and technical specifications that set the P1S apart:

  1. Plastic Enclosure: Unlike its counterpart, the P1P, the P1S boasts a plastic enclosure. This design choice enhances durability and provides a protective shell for the printer.

  2. Closed Loop Control Cooling Fan System: The P1S incorporates a closed loop control cooling fan system, ensuring efficient cooling during printing. This feature contributes to better print quality and prevents overheating.

  3. Activated Carbon Air Filtration: The P1S is equipped with an activated carbon air filter, which helps purify the air by trapping particles and odors. This is especially beneficial for maintaining a clean printing environment.

  4. Premium Toolhead Cable with Cable Chain: Bambu Lab has upgraded the P1S with a premium toolhead cable that includes a cable chain. This arrangement minimizes cable strain and enhances cable management.

  5. ABS and ASA Full Compatibility: The P1S is fully compatible with both ABS and ASA filaments. This versatility allows users to explore a wider range of materials for their 3D printing projects.

For more detailed information, you can explore Bambu Lab’s official website here.

Three different models of 3D printers against a red background.

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In conclusion, the Bambu Lab P1S Cooling Fans stand out as a pinnacle of innovation and efficiency in the realm of 3D printing technology. With features like a plastic enclosure for enhanced durability, a closed-loop control cooling fan system for superior print quality, and activated carbon air filtration for a clean printing environment, the P1S sets a new standard in the industry. Its compatibility with ABS and ASA filaments, along with premium toolhead cable management, highlight the meticulous design and engineering behind Bambu Lab’s products.

For a seamless printing experience that combines speed, reliability, and versatility, the Bambu Lab P1S Cooling Fans are a compelling choice for enthusiasts and professionals alike.


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