Formlabs 4B Dental 3D Printer

Masked Stereolithography (MSLA)

Low Force Display™ (LFD)

Backlight Unit
Light Processing Unit 4 (LPU 4)
Release Texture
Flexible Film Resin Tank
Intelligent Control Systems
High-Speed Automatic Resin Handling

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

100 mm/hour
3.9 in/hour

Average: 40 mm/hour (1.6 in/hour) across all materials
Range: 16-50 mm/hour (0.6-2.0 in/hour) depending on the material

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)

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

98.7%, measured by an independent third-party lab in a series of comprehensive performance tests.

Learn More

38 industry-leading Formlabs materials, including 15 biocompatible, or third-party materials using Open Material Mode. More exciting new materials are currently in development.

Explore Materials

Yes

20.0 × 12.5 × 21.0 cm
7.9 × 4.9 × 8.3 in
5.25 liters

250 cm²
38.8 in²

27.3 cm
10.7 in

50 µm with pre-tuned anti-aliasing for subpixel resolution
Superior fine feature performance and sharp features compared to the Form 3B Series

25–200 µm
0.001–0.008 in

1

Next-generation resin cartridge
5-10x faster filling
63% less waste
30% less shelf space

High speed conduction resin heating with infrared temperature sensing 

Auto-heats resin to 25–45 °C (77–113 °F), depending on material

Z-Axis Force Sensor: automatically optimizes print quality and print speed based on part geometry and selected material.

Auto-generated
Light-touch removal

View Design Guide

39.8 × 36.7 × 55.4 cm
15.7 × 14.5 × 21.9 in

40.7 × 47.8 × 84.4 cm
16.0 × 18.8 × 33.2 in

18.3 kg
40.4 lb

18–28 °C
64–82 °F

100–240 VAC
4.8 A
50/60 Hz
480 W

Wi-Fi (2.4 and 5 GHz; IEEE 802.11 b/g/n/ac, WPA/WPA2)
Ethernet (1000 Mbit)
USB-C 2.0

7" interactive touchscreen
1280 × 800 resolution
Languages: English, German, French, Spanish, Italian, Japanese, Simplified Chinese

Touchscreen alerts
SMS/email via Dashboard
Speaker for audio alerts

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

Integrated camera
2592 x 1944 resolution (5MP)
Remote monitoring, print history, and print timelapses
Can be easily disabled, covered, or removed

PreForm, Dashboard, Fleet Control

Windows 10 (64-bit only, ARM not supported) and up
Mac OS X 10.15 and up
OpenGL 2.1
C++ runtime library from Microsoft (Windows only)
4 GB RAM (8 GB recommended)

STL, OBJ, and 3MF file input
FORM file output

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

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

75,000+ layers with any Formlabs material *

For example: approximately 340 prints using clear aligner models (22 mm tall), any resin, and 100 µm layer height

600k - 1.9M layers, depending on material and layer height *

For example: approximately 5,000 prints using diagnostic models (22 mm tall), Grey Resin v5, and 100 µm layer height