Form 3L - Large SLA 3D printer


Form 3L

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.



Big Parts, Big Throughput

With a large build volume of 33.5 × 20 × 30 cm (13.2 × 7.9 × 11.8 in),
you can print one large model or many small parts in a single job.

Outsourcing icon

Stop outsourcing large-scale prints.

Work faster with a large format 3D printer that’s versatile enough to bring large scale fabrication in-house.

Large Ideas icon

Life-sized prints for larger-than-life ideas.

The Form 3L is large enough to print human-scale models, like a prototype of a helmet that’s ready to try on.

Scale Perfectionism icon

Perfectionism that scales.

Two precision Light Processing Units inside the printer achieve consistent accuracy and detail across the entire build platform.


Draft Resin

Print Time

8 hours

Print Cost


Part By

Black Diamond Equipment


Black Diamond Equipment is prototyping climbing helmets at 1:1 scale to test for form and fit, producing several iterations per week in-house and reducing costs. Read more about how Black Diamond uses the Form 3L.

Note: print time and cost will vary based on part geometry, material, layout, and orientation.

70,000,000 Parts Printed With Formlabs Technology

Harvard University


Efficient icon

Intuitive and efficient

No specialized technicians required. The Form 3L offers automatic resin dispensing, simple print preparation software, and a thoughtfully designed interface.

High-resolution touchscreen interface:
A 5.5” interactive full-color display minimizes error and eliminates the need for constant monitoring.

Automated print setup:
Tested over millions of prints, our free print preparation software, PreForm, automatically suggests optimal orientation, supports, and layout, with the ability to manually refine as needed.

Continuously evolving:
We believe the best products grow better over time, and we’re committed to continually evolving our hardware through software improvements.

Nonstop Printing

Print Around the Clock Icon

Print around the clock

Whether you’re packing the build volume for batch production or printing bulky parts, the Form 3L maintains ideal print conditions for nonstop throughput, with minimal supervision.

Cloud monitoring:
Remotely monitor and manage your fleet of printers with the online Dashboard.

Fast-printing material:
Draft Resin balances detail and speed to save time on bulky prototypes and enable quick iteration.

In-field repairs:
The Light Processing Units, rollers, optics window, and other components can be replaced in-house to ensure 24/7 uptime.


Part Quality icon

Incredible part quality

Stop sacrificing on quality for large-format prints. The Form 3L provides the smooth surface finish and fine detail that stereolithography 3D printing is known for.


XY Resolution

25 - 300μm

Layer Thickness*


* Available layer thickness settings vary by material. Visit our material settings roadmap for more details.

Smooth surface finish:
Models printed on the Form 3L resemble polished injection-molded for realistic looks-like prototyping and consumer-ready end-use part production.

Consistent precision:
A system of lasers and mirrors ensures uniform print quality, for an XY resolution of 25 microns across the entire build platform.

High translucency:
With precise layer registration and smooth surface finish, translucent materials print clearer than ever, right off the printer.

Form 3L

Form 3L: Product Deep Dive With the Engineering Lead

Our Form 3L product manager, Kyle McNulty will chat with Caitlin Reyda, the lead engineer for the Form 3L, and discuss everything you need to know about bringing a large format printer in-house.

Watch Now

Hassle-Free Materials Management

Choose from a wide range of advanced materials, developed specifically for Formlabs printers by in-house materials scientists. With simplified material switching and automatic resin dispensing, the Form 3L allows you to walk away and focus on other work once your print job starts.

Many applications, one printer.

Print in over 15 functional resins to support a wide range of workflows on a single platform.

Switch Icon

Switch materials in minutes.

Avoid the hassle and mess of purging materials with our swappable cartridge system, cross-compatible with other Formlabs SLA printers.

Resins icon

Automatic resin dispensing.

Our automated resin system dispenses resin as parts print. The Form 3L holds two cartridges of resin to avoid mid-print interruptions.

Explore All Materials

Available layer thickness settings vary by material. Visit our material settings roadmap for more details.

Form 3L

Part of the Formlabs Ecosystem

Formlabs is known for designing end-to-end additive workflows you’ll be excited to use. The Form 3L brings the Formlabs experience to large format 3D printing.

Post-Processing, Simplified

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, coming Q4 2021. 

Explore Post-Processing Solutions
Form 3L

Compare Formlabs SLA 3D Printers

Form 3
Form 3
Form 3
Build Volume (W × D × H)
14.5 × 14.5 × 18.5 cm
5.7 × 5.7 × 7.3 in
33.5 × 20 × 30 cm
13.2 × 7.9 × 11.8 in
33.5 × 20 × 30 cm
13.2 × 7.9 × 11.8 in
XY Resolution

25 microns

25 microns

25 microns

Biocompatible Materials
Laser Power
One 250 mW laser
Two 250 mW lasers
Two 250 mW lasers
17.5 kg
38.5 lb
54.4 kg
120 lb
54.4 kg
120 lb
Printer Dimensions (W × D × H)
40.5 × 37.5 × 53 cm
15.9 × 14.8 × 20.9 in
77 × 52 × 74 cm
30.3 × 20.5 × 29.1 in
77 × 52 × 74 cm
30.3 × 20.5 × 29.1 in
Explore Form 3BL

Sold on Formlabs Dental

Built on Low Force Stereolithography (LFS)™ technology for groundbreaking print quality and printer reliability.

Take control of large-scale prototyping and production today.