An easy-to-use large format 3D printer for reliable production of industrial-quality parts


The Form 3L has a build volume five times the size of that of the Form 3 so you’ll be sure to enjoy faster printing. Blaze through large parts with two custom-designed Light Processing Units (LPUs). The two lasers simultaneously build large, dense parts fast.


The Form 3L features automatic resin dispensing, easy-to-use software and interface. Built around the same powerful Low Force Stereolithography (LFS) process as the Form 3, the Form 3L has the same professional quality, ease of use, reliability, and versatility you’ve come to expect from Formlabs. If you’re used to working with the Form 3, you’ll be able to use two of the same resin cartridges helping you to avoid mid-print interruptions. Likewise, the Form 3L features the same user-replaceable Light Processing Unit (LPU).


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 Printing Materials in Minutes

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

Completely 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.



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.


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.


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.

  • 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 Basic Package


Form 3L 3D Printer
Resin Tank
Build Platform
Finish Kit
PreForm Software
1 Year Pro Service Plan
Extended Warranty (1 Year)
Form Wash L
Form Cure L
FORM 3L Complete Package


Form 3L 3D Printer
Resin Tank
Build Platform
Finish Kit
PreForm Software
1 Year Pro Service Plan
Extended Warranty (1 Year)
Form Wash L
Form Cure L


Pro Service Plan 2 Years


Pro Service Plan 3 Years


Form 3L Service Plans: Tailored for professionals, this premier support service is designed to meet the needs of your business and deliver rapid response to your most critical issues.

Fonder Clint

Senior Manufacturing Engineer 

The Form 3L has already paid for itself many times over. We are now able to print consumable parts for a process and are saving $10K/Month!!!!! We are so impressed with the 3L and its reliability.

Matt Tetzl

R&D Technician, Black Diamond Equipment

We have reduced our costs on full-size prototypes from $425 a print to $70 a print [compared to outsourcing]. With that saving, the Form 3L would pay for itself in only 3 months.

Laura McAfee-Ramirez

Additive Manufacturing Technician, Tesla Motors Inc.

The Form 3L is a great machine with a nice interface. It has easy, step-by-step instructions for most functions. Having the same functionality and excellent part quality of the form 3 with a larger build volume is especially helpful for building larger parts in one piece rather than cutting and assembling post production. The cartridges are interchangeable with the Form 3s and 2s, which is incredibly helpful in a lab setting where we run many different machines.

Lousie Katzovitz

Mechanical Engineer, Optimus Ride

When we’ve outsourced large scale enclosures, you could still see all of the layer lines. I wasn’t able to see them on the Form 3L prints. Being able to quickly iterate on our cosmetic covers to add a level of polish to our R&D efforts is really helpful.


Streamline your workflow and consistently produce clean, high-quality, accurate parts with our automated, large format postprocessing machines. Form Wash L and Form Cure L are ideal for washing and post-curring full-size Form 3L and Form 3BL prints, or for batch processing of smaller parts.


Post-curing SLA 3D printed parts helps them reach their maximum mechanical properties and achieve peak dimensional accuracy.


All SLA 3D printed parts require washing to remove residual resin. Form Wash L automates this process, leaving you with smooth, clean, high-quality parts every time.


Below you’ll find answers to our most commonly asked questions.

You can count on personalized support around the clock – by email, live chat, or by joining a live webinar.

What is a Form 3L printer?

A Form 3L printer is a large format 3D Printer that is compact enough for the office yet robust enough for the factory floor. Take control of large-scale part production, and increase your throughput with a cost-effective Form 3L.

Do I need specialized technicians to use the Form 3L printer?

No, you do not. The Form 3L offers automatic resin dispensing, simple print preparation software, and a thoughtfully designed interface.

What is included in the Form 3L Basic Package?
The Form 3L Basic Package includes:
  • Form 3L 3D Printer
  • Resin Tank
  • Build Platform
  • Finish Kit
  • PreForm Software
  • 1 Year Pro Service Plan
  • Extended Warranty

Contact us for any questions you may have about package pricing, add ons, services, or extended warranties.

What is the average lifespan of a Formlabs printer?

The lifespan of your printer depends on many factors. However, all Formlabs printers must pass a rigorous endurance test. The 36-month design operation test ensures a long-lasting, quality printer.

What kind of resins does Formlabs 3D printers use?

There are 3 types of resins available: Standard Resins, Engineering Resins, or Nylon Powders (for the Fuse 1).

Custom-formulated Standard Resins deliver the highest-quality output plus capture astonishing detail without sacrificing strength. Engineering Resins are versatile, reliable, and formulated to help reduce costs, iterate faster, and bring better experiences to market. Nylon Powders 3D print production-ready, end-use parts on the Fuse 1 printer. Check out our Formlabs Resins Library.