One of Voxel Factory favorite's release since years! Why?

BIG PARTS: 4.6x larger build volume compared to Form 4.
BLAZING FAST: Large prints in under 6 hours.
VERSATILE: Industry-leading materials & Open Materials Mode
INTUITIVE: Top-notch Formlabs guides and documentation.
RELIABLE: Large format 3D printing you can depend on.
STUNNING PARTS: Parts that always fit.

Backlit Unit:

The Backlight Unit generates a uniform area projection of an ultra-high power light using 145 LEDs and collimating lenses. It cures resin quickly and precisely, delivering blazing fast print speeds with excellent print quality and accuracy anywhere on the build platform.

Light Processing Unit:

The Light Processing Unit 4L (LPU 4L) precisely masks light from the backlight unit into the shape of a printed layer. Together, the Backlight Unit and LPU 4L enable you to print with extreme speed, accuracy, and print quality anywhere on the build platform. The LPU 4L is long -lasting, resistant to accidental damage, and easy to replace.

Release texture:

A proprietary, microtextured optical film provides airflow between the resin tank and the Light Processing Unit. This film is built into the Light Processing Unit and sits at the top of it. This significantly reduces peel forces so you can print at blazing fast speeds without sacrificing surface finish, fine features, accuracy, or reliability.

Intelligent Control System:

Six onboard control systems precisely measure and maintain the temperature, resin level, print forces, and print status inside your printer. Together, they ensure consistent, reliable performance and prevent common failures, for the same results on every printer and every print.

Resin Tank:

The Form 4L Resin Tank holds liquid resin inside the printer and provides a substrate for the liquid resin to cure against, using a dual-layer flexible film stack. It significantly reduces peel forces so you can print at blazing fast speeds without sacrificing surface finish, fine features, accuracy, or reliability.

Automatic Resin Handling:

Integrated system that dispenses resin quickly, accurately, and with minimal waste, while making it easy to switch materials. Print without having to worry about your printer running out of resin and switch materials in <1 minute. Form 4L is still one of the only SLA printers on the market to offer this feature.

Looking to print with biocompatible materials? See Form 4BL.

specs

Technology

Masked Stereolithography (MSLA)

Printer Engine

Low Force Display™ (LFD)

Key Components of the Print Engine

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

Light Source

Backlight Unit: 145 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
46 µm pixel size

Maximum Print Speed¹

80 mm/hr
3.1 in/hour

Typical Print Speed²

Average: 24 mm/hour (0.9 in/hour) across all materials
Range: 20-35 mm/hour (0.8-1.4 in/hour) depending on material

Typical Dimensional Tolerances³

1-30 mm features: ±0.15% (lower limit: ±0.02 mm)
31-80 mm features: ±0.3% (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:
99.9% of surfaces within 100 μm of CAD model
96.7% of surfaces within 50 μm of CAD model
71.4% of surfaces within 25 μm of CAD model

Materials

19 industry-leading Formlabs materials or third-party materials using Open Material Mode . More exciting new materials are currently in development.

Explore Materials

Biocompatible Materials

YES

Build Volume (W x D x H)⁵

35.3 × 19.6 × 35.0 cm
13.9 x 7.7 x 13.8 in
24.2 liters

Build Area

692 cm²
107 in²

Maximum Part Length⁶

Not measured

XY Resolution⁷

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

Layer Thickness⁸

25–200 µm
0.001–0.008 in

Resin Cartridges

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)

66.4 x 52.8 x 79.4 cm
26.1 x 20.8 x 31.3 in

Minimum Access Dimensions (W x D x H)

88.9 x 116.9 x 81.3 cm
35 x 46 x 32 in

Printer Weight

58.5 kg
129 lb

Operating Environment

18–28 °C
64–82 °F

Power Requirements

100-240 VAC
9 A
50/60 Hz
900 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, 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 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)

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
Manual editing of 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 190 prints using an average height model (39 mm tall), any resin, and 100 µm layer height

Light Processing Unit Estimated Lifetime¹¹

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

For example: approximately 1,300 prints using average height models (87 mm tall), Grey Resin V5, and 100 µm layer height

Produits

Form 4 Series Resin Pump

Formlabs Form 4BL 3D printer Basic Package

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