Neptune 3 Pro, Build Volume: 225 x 225 x 280 mm³ (CAT#: STEM-TDP-0112-LC)

One-Click Auto Leveling
The 36-point leveling system employs a non-contact sensor that accurately gauges the distance between the nozzle and the hotbed in 36 locations across the print platform. It automatically calibrates and compensates for any irregularities or unevenness in the hotbed to enhance the final print quality. Simply click once to get it leveled! The PEI magnetic platform ensures strong adhesion, allowing for easy removal of printed models by flexing the print steel sheet.

Powerful Extrusion System
Featuring a double-gear direct extruder with a motor that offers three times the extrusion torque and enhanced gearing force, this system works in conjunction with a titanium alloy throat pipe for easier filament feeding and more stable, precise printing. Additionally, the 250W heated bed rapidly reaches 100ºC and is compatible with PLA, ABS, ASA, PETG, TPU, and similar filaments.

PEI Magnetic Platform
The PEI magnetic platform, crafted with a special coating and spring steel sheet, provides excellent adhesion and anti-warping properties, allowing prints to be easily removed or popped off by bending the print steel sheet.

Quiet & Safe Printing
This printer features an STM 32-bit motherboard with silent drivers and an optimized nozzle heat dissipation design, which reduces noise to 50db—comparable to a soft whisper. The wear-resistant POM V-slot wheels glide quietly, smoothly, and with precision. The reliable branded power supply has undergone extensive testing to ensure safe operation and minimize printing errors.

Enhanced Reliability
The dual lead screw and dual motor design for the Z-axis improve accuracy and stability during printing. The XY-axis belt tensioner allows for easy adjustment of belt tightness with a simple hand-twist knob, while a widened Y-axis profile enhances the stability of the printing platform.

Smart Resume Printing
No worry about unexpected power failure during the printing process since the printer can resume printing after the power supply is restored.
With a filament detection sensor, whenever the filament runs out or breaks, the printer will pause and alarm until you load the new filament to avoid material waste and model scrapping.

Product Model: Neptune 3 Pro
Printing Technology: FDM (Fused Deposition Modeling)
Frame Material: CNC machined aluminium extrusion
Voltage: 100-120V/220-240V
File Transfer Method: TF card, USB cable
File Format: STL、OBJ
UI Language: English, French, German, Russian, Italian, Spanish, Japanese, Chinese
Build Volume: 225 x 225 x 280 mm³
Printing Platform Size (PEI Area): 235 x 235 mm²
Machine Size: 475 x 445 x 515 mm³
Package Size: 605 x 500 x 240 mm³
MAXIMUM SIZE FOR MACHINE ACTIVITY/MM: 475 x 580 x 725 (Including Rack & Tray)
Net Weight: 8.1 kg
Gross Weight: 10.4 kg
Max. Nozzle Temperature: 260 °C
Max. Hot bed Temperature: 100 °C
Resume Printing: Yes
Filament Detection: Yes
Filament Compatibility: PLA / TPU / PETG / ABS / ASA

Print Volume 225 x 225 x 280 mm³
Auto Bed Leveling
PEI Magnetic Platform
Quiet Printing
Powerful Dual-Gear Extruder
Removable 4.3'' Touch Screen