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Blazing Speed Meets Unmatched Accuracy. Form 4B creates opportunities for dentists, orthodontists, and labs, accelerating print speed, increasing build volume, expanding the material availability, and enabling accuracy anywhere on the build platform — all with effortless workflows that save time.
Print speeds of up to 100 mm per hour, optimized dental materials, and consistent surface accuracy mean you can now have blazing speed, unmatched accuracy, and increased production volume — with the new Form 4B.
Unprecedented print speeds. Print a dental model every 49 seconds.
99% of surface within ±100 μm. Unrivaled accuracy that matches your commitment to a perfect fit, every time.
Anyone can learn in 15 minutes. The intuitive workflow that transformed digital dentistry. Now up to 5x faster.
Across the build platform
Lower peel forces, light touch supports, and 50 µm pixel size with pre-tuned anti-aliasing
Highly collimated light and 50 µm pixel size with pre-tuned anti-aliasing for subpixel resolution
Formlabs optimization engineers put hundreds of printed parts to the test to ensure each material performs to the most reliable standards, right out of the box.
Six control systems precisely measure and maintain the temperature, resin level, print forces, and print status inside your printer.
Robust hardware that was engineered for years of use.
Tank rated for >75,000 layers for all materials.
Light Processing Unit rated for >750,000 layers.
60-point calibration and quality control inspection before your printer even leaves the factory.
Monitor your prints and manage your printers from anywhere with an integrated camera, preventative maintenance reminders, and a free dashboard software.
Meet the experts and solve your most challenging jobs. Experience a live one-on-one demo tailored for you with our Application Engineers.
Technology
Masked Stereolithography (MSLA)
Printer Engine
Low Force Display™ (LFD)
Key Components of the Print 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 Speed¹
100 mm/hour
3.9 in/hour
Typical Print Speed²
Average: 40 mm/hour (1.6 in/hour) across all materials
Range: 15-100 mm/hour (0.6-3.9 in/hour) depending on the material
Typical Dimensional Tolerances³
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)⁴
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
Materials
37 industry-leading Formlabs materials, including 14 biocompatible, or third-party materials using Open Platform. New materials being developed periodically.
Biocompatible Materials
Yes
Build Volume (W x D x H)⁵
20.0 × 12.5 × 21.0 cm
7.9 × 4.9 × 8.3 in
5.25 liters
Build Area
250 cm²
38.8 in²
Maximum Part Length⁶
27.3 cm
10.7 in
XY Resolution⁷
50 µm with pretuned anti-aliasing for subpixel resolution
Superior fine feature performance and sharp features compared to the Form 3B Series
Layer Thickness⁸
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
Printer Weight
18.3 kg
40.4 lb
Operating Environment
18–28 °C
64–82 °F
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 Control⁹
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)
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 Lifetime¹⁰
75,000+ layers with any Formlabs material *
For example: approximately 340 prints using clear aligner models (22 mm tall), any resin, and 100µm layer height
Light Processing Unit Estimated Lifetime
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 100µm layer height