FLSUN S1 Pro
FLSUN S1 Pro
Printer Highlights
About FLSUN S1 Pro
FLSUN S1 Pro is an enclosed Delta FDM 3D printer with a Ø320 × 430 mm build volume, up to 1,200 mm/s print speed, a 350°C hotend, a 120°C heated bed, a direct drive extruder, and auto bed leveling.
General Information of FLSUN S1 Pro
Printer Name
FLSUN S1 Pro
Brand
FLSUN
Series
S1
Release Date
November 25, 2024
Build Volume & Chassis of FLSUN S1 Pro
Build Volume
Ø320 x 430 mm (Ø12.6 x 16.9 in)
Build Volume (Diameter)
320 mm (12.6 in)
Build Volume (Z)
430 mm (16.9 in)
Enclosed Chamber
Yes
Frame Type
Fully Enclosed All-Metal Delta Frame
Machine Size
550 x 595 x 1030 mm (21.7 x 23.4 x 40.6 in)
Machine Weight
41.0 kg (90.4 lbs)
Motion System & Kinematics of FLSUN S1 Pro
Kinematics Type
Delta
Motion Axis Type
Carbon-Fiber Parallel Rods with High-Torque Steppers
Kinematics Layout
Delta
Rail System
All-Metal Precision Linear Guide Rails
Dual Z-Axis
No
Extruder & Toolhead of FLSUN S1 Pro
Extruder Type
Direct Drive
Toolhead Count
1
Filament Diameter
1.75 mm
Nozzle Diameter
0.4 mm
Nozzle Material
Hardened Steel
Supported Nozzle Diameters
0.4 mm, 0.6 mm, 0.8 mm
Max Nozzle Temp
350°C
Multi-Material Ready
No
Max Colors / Materials
1 Color
Bed & Thermal System of FLSUN S1 Pro
Build Plate Type
Textured PEI Spring Steel Magnetic Platform with Dual-Zone Heating
Heated Bed
Yes
Max Bed Temperature
120°C
Actively Heated Chamber
No
Print Speed & Performance of FLSUN S1 Pro
Max Print Speed
1,200 mm/s
Typical Print Speed
600 mm/s
Max Acceleration
40,000 mm/s²
Max Flow Rate
110 mm³/s
Min Layer Height
0.05 mm
Max Layer Height
0.35 mm
Speed Benchy Time
8 min
Automation & Electronics of FLSUN S1 Pro
Auto Bed Leveling
Yes
Leveling Sensor Type
Full-Bed Dual-Sensor Automatic Leveling
Filament Runout Sensor
Yes
Power Loss Recovery
Yes
Input Shaping (Resonance)
Yes
Built-in Camera
Yes
First Layer LiDAR
No
Part Cooling Fan
Ultra-High Speed CPAP Turbo Cooling System
Hotend Fan
Closed-Loop Axial Fan
Software & Connectivity of FLSUN S1 Pro
Firmware
Klipper-based Flsun OS
Compatible Slicers
Flsun Slicer / OrcaSlicer
Connectivity
Wi-Fi 2.4GHz, USB Flash Drive
Display Screen
7-inch Color Capacitive Touchscreen
Input Voltage
100-240V AC
Special Features
Ultra-high 1,200 mm/s peak instantaneous speed and 40,000 mm/s² acceleration, Delta diameter Ø320 mm; 430 mm height at center (383 mm full-diameter outer height), 350°C hardened steel hotend (110 mm³/s peak flow tested on FLSUN PLA-HS), Enclosed thermal frame with integrated active heating filament dry box, AI monitoring camera with debris and spaghetti detection
Special Note on FLSUN S1 Pro
The FLSUN S1 Pro is a high-speed enclosed Delta 3D printer featuring a Φ320 x 430 mm cylindrical build volume, 1,200 mm/s peak print speed, 40,000 mm/s² acceleration, a 350°C hotend with 110 mm³/s flow, dual-zone bed heating up to 120°C, and an integrated active heating filament drying box. Manufacturer caveat: 430 mm max Z applies near the bed center; maximum full-diameter Ø320 mm cylindrical height at the outer perimeter is 383 mm. Peak 110 mm³/s volumetric flow is rated using FLSUN PLA-HS.
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