Technology: Masked Stereolithography (MSLA)
Printer Engine: Low Force Display™ (LFD)
Key Components of the Engine: Backlight Unit
Light Processing Unit 4 (LPU 4)
Release Texture
Flexible Film Resin Tank
Intelligent Control Systems
High-Speed Automatic Resin Handling
Light Source:Backlight Unit: 60 uniform-wavelength LEDs, a plano-convex lens array, and integrated air cooling
405 nm optical wavelength
16 mW/cm² optical power intensity delivered to the cure plane
50 µm pixel size
Maximum Print Speed:100 mm/hour
3.9 in/hour
Typical Print Speed:Average: 40 mm/hour across all materials
Range: 15-100 mm/hour depending on the material
Typical Dimensional Tolerances:1-30 mm features: ±0.15% (lower limit: ±0.02 mm)
31-80 mm features: ±0.2% (lower limit: ±0.06 mm)
81-150 mm features: ±0.3% (lower limit: ±0.15 mm)
Surface Accuracy (Restorative Models)On average with Precision Model Resin:
99.7% of surfaces within 100 μm of CAD model
95% of surfaces within 50 μm of CAD model
69% of surfaces within 25 μm of CAD model
Materials23 industry-leading Formlabs materials, or third-party materials using
Open Platform. New materials being developed periodically
Explore Materials
Biocompatible Materials: Not available (see Form 4B)
Build Volume (W x D x H):
20.0 × 12.5 × 21.0 cm
7.9 × 4.9 × 8.3 in
5.25 liters
Build Area: 250 cm²
Maximum Part Length:27.3 cm
XY Resolution:
50 µm with pretuned anti-aliasing for subpixel resolution
Superior fine feature performance and sharp features compared to the Form 3 Series
Layer Thickness: 25–300 µm, 0.001–0.012 in
Resin Cartridges: 1
Resin Cartridge Type:
Next-generation resin cartridge
5-10x faster filling
63% less waste
30% less shelf space
Resin Heating: High speed conduction resin heating with infrared temperature sensing
Internal Temperature: Auto-heats resin to 25–45 °C (77–113 °F), depending on material
Force Sensing: Z-Axis Force Sensor: automatically optimizes print quality and print speed based on part geometry and selected material.
Supports: Auto-generated, Light-touch removal
Design/CAD Specifications: View Design Guide
Printer Dimensions (W x D x H): 39.8 × 36.7 × 55.4 cm
Minimum Access Dimensions (W x D x H): 40.7 × 47.8 × 84.4 cm
Printer Weight: 18.3 kg
Operating Environment: 18–28 °C
Power Requirements: 100–240 VAC, 4.8 A, 50/60 Hz, 480 W
Connectivity:
Wi-Fi (2.4 and 5 GHz; IEEE 802.11 b/g/n/ac, WPA/WPA2)
Ethernet (1000 Mbit)
USB-C 2.0
Printer Control:
7" interactive touchscreen
1280 × 800 resolution
Languages: English, German, French, Spanish, Italian, Japanese, Traditional Chinese, Simplified Chinese
Alerts:
Touchscreen alerts
SMS/email via Dashboard
Speaker for audio alerts
Sensors and Control Systems:
6 upgraded sensors that precisely control resin temperature, resin level, print forces, and print status:
High-speed conduction resin heating with infrared temperature sensing
Ultrasonic Resin Level Sense: controls resin in the tank
Z-Axis Force Sensor: controls and minimizes print forces
Resin Cartridge Load Cell: measures exact resin level in cartridge
Printer Leveling Sensor
Camera
Camera:
Integrated camera
2592 x 1944 resolution (5MP)
Remote monitoring, print history, and print timelapses
Can be easily disabled, covered, or removed
Software:
PreForm, Dashboard, Fleet Control
PreForm System Requirements:
Windows 7 (64-bit) and up
Mac OS X 10.12 and up
OpenGL 2.1
C++ runtime library from Microsoft (Windows only)
4 GB RAM (8 GB recommended)
PreForm File Types:
STL, OBJ, and 3MF file input
FORM file output
PreForm Print Setup Features:
One-Click Print
Adaptive layer thickness for faster printing with fine details
Remote Print
Auto-orient for optimal print position
Auto-mesh repair
Auto-generation of supports
Advanced tools for manually editing supports
Rotate, scale, duplicate, and mirror
Layer slicer for path inspection
Custom print settings
Available in multiple languages
Dashboard Printer Management Features:
Manage prints and printers via the cloud
Track resin and tank usage over time
SMS and email alerts
Create enterprise group accounts with admins to more easily share printers and control access
Resin Tank Estimated Lifetime:
75,000+ layers with any Formlabs material
For example: approximately 190 prints using average height model (39 mm tall), any resin, and 100µm layer height
Light Processing Unit Estimated Lifetime:
600,000 - 1,900,000 layers, depending on material and layer height
For example: approximately 2,800 prints using average height models (39 mm tall), Grey Resin V5, and 100µm layer height