FLSUN S1 PRO
The FLSUN S1 Pro is a high-performance, ultra-fast Delta 3D printer designed for both enthusiasts and professionals. It distinguishes itself with exceptional speed, a large build volume, and a suite of smart features. It is designed for both demanding professionals requiring high-speed production and prototyping, as well as hobbyists who seek a top-tier 3D printing experience with advanced features and material compatibility.
Exceptional Print Speed and Acceleration
The S1 Pro boasts an impressive maximum print speed of up to 1200 mm/s and an acceleration of 40,000 mm/s², making it one of the fastest 3D printers on the market. This significantly reduces print times, especially for large projects.

Advanced Material Compatibility
The S1 Pro supports a wide range of high-performance and engineering-grade materials, including ABS, ASA, PA, PC, PET, and carbon/glass fiber-reinforced filaments. This is facilitated by a hotend capable of reaching 350∘C and a heated bed up to 120∘C.

Fully Enclosed and Heated Chamber
The printer features a fully enclosed design with aluminum panels and a glass door. It also includes intelligent zoned heating for energy-efficient temperature control within the build chamber (up to 50°C), which is crucial for printing with advanced materials.

Quiet Operation
Despite its high-speed capabilities, the S1 Pro is engineered for a relatively quiet operation, producing approximately 55 dB of noise. This makes it a much more agreeable addition to a home workshop or office environment compared to other 3D printers that can be quite loud.

Robust, Pre-assembled Design
The S1 Pro is designed for convenience, arriving 95% pre-assembled. This significantly reduces setup time, allowing you to start printing almost immediately. Its robust metal construction provides exceptional stability, which is crucial for maintaining print quality at the extremely high speeds it can achieve.

Direct Drive Dual Gear Extruder
At the heart of its extrusion system is a lightweight direct drive dual-gear extruder. This design provides superior control over filament feeding, ensuring consistent and precise extrusion. The direct drive setup also makes it particularly well-suited for printing flexible filaments like TPU.

Smart AI Functions
It incorporates advanced FLSUN 2.0 algorithms and AI-based features, such as:
- Automatic bed leveling.
- “Spaghetti” detection (print errors).
- Filament clog detection.
- Advanced extrusion calibration.
- Real-time monitoring camera and timelapse.
- Intelligent zone heating on the print bed (inner circle of Φ220mm, outer ring of 220-320mm) for greater energy efficiency.
- Active Filament Drying Box: Features an integrated filament drying box with active heating, which helps maintain material quality and improves print results.
- Integrated Air Filter: Includes a HEPA and activated carbon filter to improve air quality during printing, especially useful with materials that emit fumes.

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