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Stereolithography SLA
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Formlabs Form 3L

Form 3L – Small details, big results.

A Large Format 3D Printer Compact Enough for the Office and Robust Enough for the Factory Floor

Take control of large-scale part production, increase your throughput, and bring your biggest ideas to life with the Form 3L, a cost-effective large format 3D printer that doesn’t compromise on the details.

One Platform, 20+ Materials

Switch seamlessly between a library of general-purpose and specialty resins. Swap between materials in seconds with a cross-compatible cartridge system.

Build Volume:
13.2 x 7.9 x 11.8

Layer Thickness:
25 – 300 microns
.001 – .012 in

2x light processing unit:
85 microns laser spot size
Two 250mW lasers


Request a Free Custom Benchmark Print

See and feel Formlabs quality firsthand. We will ship a free sample part of your design to evaluate in your resin of choice.

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Request a Free Custom Benchmark Print from Formlabs
Low Force Stereolithography (LFS)

An Introduction to Low Force Stereolithography (LFS)

LFS 3D printing uses a flexible tank and linear illumination to deliver incredible surface quality and print accuracy. Lower print forces allow for light-touch support structures that tear away with ease. Additionally, this process opens up a wide range of possibilities for future development of advanced, production-ready materials.

Inside the Form 3L are 2 completely redesigned optics engines, the Light Processing Unit (LPU), which contains a system of lenses and mirrors to deliver accurate, repeatable prints. Within the LPU, a galvanometer positions the high-density laser beam in the Y direction passes it through a spatial filter, and directs it to a fold mirror and parabolic mirror to consistently deliver the beam perpendicular to the build plane.

Powerful, reliable print process.

Form 3L is an affordable large-format 3D printer designed for professionals for fast turnaround of industrial-quality parts, printed using an advanced Low Force Stereolithography (LFS) process.

Faster printing

Blaze through large parts with two custom-designed Light Processing Units (LPUs). Two lasers simultaneously build large, dense parts fast.

Powerful, reliable print process

Form 3L is built around the same powerful LFS process as the Form 3, for the same professional quality, ease of use, reliability, and versatility you’ve come to expect from Formlabs.

Cross-compatibility and uptime

Use two of the same resin cartridges that are used by Form 2 and 3 to go longer without running out of resin. Use the same user-replaceable Light Processing Unit (LPU) as the Form 3.

Formlabs Form 3L
Formlabs resin material library

Formlabs Resin Library

Advanced 3D printing materials designed to deliver beautiful results

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Wash and Cure Station

Rinse your part and remove supports with the Form 3L Finish Kit. For an automated finishing solution, use Form Wash and Form Cure for smaller parts, or use our large scale rinse and cure stations, Form Wash L and Form Cure L.
Formlabs Wash and Cure Station
Formlabs Preform Software

Preform Software

Design your model in standard CAD software. Import the STL or OBJ file into your print preparation software, Preform. You can get your model ready in minutes, upload it to your printer, and let it start building.

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