FLSUN S1 Pro - Article Main Image

FLSUN Unveils S1 Pro: High-Speed Delta 3D Printer [$]


Following the outstanding success of the T1 Pro, FLSUN is gearing up to launch its next innovative product, the S1 Pro, later this year. Designed to build on the strengths of the S1, the S1 Pro aims to tackle critical issues including slow printing speeds, inconsistent print quality, and high maintenance costs. This launch signifies a new chapter in flagship 3D printing technology. Find out key upgrades: S1 vs S1 Pro.


Speed Revolution

The FLSUN S1 Pro redefines speed in 3D printing, boasting a maximum print speed of 1200mm/s, an acceleration of 40,000mm/s², and a maximum flow rate of 110mm³/s. Compared to the Bambulab X1C, which caps at 600mm/s speed, 20,000mm/s² acceleration, and 32mm³/s flow rate, the S1 Pro stands head and shoulders above.

FLSUN S1 Pro
Price: Flash Sale: $999
Early Bird: $1,099
Normal: $1,699
Official Website

For example, printing a common Benchy model takes 17 minutes on the S1 Pro, while the X1C requires 31 minutes. A larger project, like a colonel model, takes only 1 hour and 59 minutes on the S1 Pro, compared to 3 hours and 54 minutes on the X1C – saving nearly half the time.

Efficiency Revolution

With its peak speed of 1200mm/s, the S1 Pro doubles the efficiency of the Bambulab X1C (600mm/s). This unparalleled efficiency allows users to complete projects faster without compromising quality, making the S1 Pro ideal for rapid prototyping and as part of 3D print farms.

Speed Comparison Image - Delta vs CoreXY
Speed Comparison Image – Delta vs CoreXY
Image: FLSUN

Ease of Use Revolution

The S1 Pro is compatible with FLSUN’s upcoming FLSUN WORLD cloud platform, an all-in-one solution for remote control, real-time monitoring and smart error-detecting. This intelligent management system enhances the user experience by making operations seamless and efficient. The printer’s automatic levelling mode also ensures precise calibration with just one click, saving time and guaranteeing flawless first-layer results. Its advanced algorithms counteract mechanical vibrations during printing, producing superior surface quality. The delta structure, full-metal frame, high-strength linear rails, and modular components also ensure durability, stability, and low maintenance.

Experience Revolution

The S1 Pro offers an expansive build volume of 320mm x 430mm, surpassing competitors like the Creality K1 Max (300mm x 300mm) and the Bambulab X1E (256mm x 256mm). This larger build space eliminates the need to split large models, enabling greater creativity and convenience.

The S1 Pro is also equipped with a high-temperature hotend (up to 350°C) and a smartly zoned heated bed (up to 120°C) with an in-chamber temperature of up to 50°C. It supports a wide variety of materials, including ABS, ASA, PA, PC, PET, and carbon/glass fiber-reinforced PLA.


Key Upgrades: FLSUN S1 vs FLSUN S1 Pro

  1. Quiet Cooling Solution
    A revamped cooling system delivers more airflow while reducing noise levels from 67 to 55dB (measured 1 meter from the device, without a silencer).
  2. Enhanced Print Quality
    The S1 Pro achieves higher precision, smoother surfaces, and enhanced detail in printed objects by optimising the closed-loop motor, slicing algorithm, and fan cooling system. Additionally, it strengthens the structural integrity of prints, significantly improving overall print quality.
  3. Perfect First Layer
    Hardware and levelling algorithm improvements ensure consistently flawless first layers, which is critical for high-quality prints.
  4. Upgraded FLSUN OS
    The software system has undergone a complete upgrade, resulting in faster response times and smoother operation. The UI improvements make the interface more intuitive and user-friendly, while optimized Wi-Fi connectivity enhances transmission speeds and ensures a more stable connection.
  5. FLSUN Slicer V2.0
    The S1 Pro comes with the new FLSUN Slicer V2.0. This version, developed based on ORCA, features optimized slicing paths and parameter tuning to better suit S1 Pro ultra-high-speed printers. It ensures that the S1 Pro delivers excellent print results even at ultra-high speeds, meeting users’ dual expectations for speed and quality.
FLSUN S1 and S1 Pro Comparison Chart
FLSUN S1 and S1 Pro Comparison Chart
Image: FLSUN

Availability and Pricing

The FLSUN S1 Pro will be available on Nov 25th at 22:00 (GTM+8) 2024 through the FLSUN official store. FLSUN offers an early bird price of $1,099, with an exclusive flash sale price of $999 from 3:00 PM-5:00 PM (CET) / 9:00 AM-11:00 AM (EST) every day from Nov 25-Dec.4.

FLSUN S1 Pro Pricing
FLSUN S1 Pro Pricing
Image: FLSUN

Up to 50% Off

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Read more: Detailed Flsun T1 Review by Richard Hirst

FLSUN was one of the first 3D printer manufacturers to create speedy consumer 3D printers implementing Klipper firmware. Their V400 and Super Racer (SR) were highly praised. Recently, FLSUN launched their new S1 and T1 series machines with many extra features, such as higher speeds and flow rates and enclosed chambers.

FLSUN T1 Delta 3D Printer and Test Prints
FLSUN T1 Delta 3D Printer and Test Prints
Featured Designs: CarPrint, FlexiFactory, 3DWithUs
©3DWithUs – Prints and Photo: Richard Hirst

With its standout features, the FLSUN T1 Delta printer would be a notable addition to any 3D printing studio—its aesthetic makes it worth watching. However, assembling the T1 is not a swift 15-minute task, unlike many other printers today, which demand more time and effort.
There are no competitors to Flsun printers in this technology and price segment. We are happy to see that Flsun continues to push delta printer technology to new heights, bringing affordable machines to a broader market.

Read more and images:
Flsun T1 Review by Richard Hirst.

About FLSUN

FLSUN is a leader in Delta 3D printers, dedicated to pushing the boundaries of speed and efficiency. Our business encompasses FDM printers, accessories, filaments, and lightweight slicing software, providing an exceptional experience for 3D printing DIY enthusiasts, professionals, and other users worldwide. We bring a true revolution in 3D printing efficiency to manufacturing, engineering, automotive, fashion, education, and architecture industries.


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