Formlabs Form 4L Overview
4.6X Larger build volume than FORM 4. Large prints in under 6 hours!
Form 4L is a blazing-fast large-format masked SLA 3D printer that combines an industry-leading materials library with a reliable, accurate print engine. Turn your biggest ideas into reality faster than ever with easy workflows, leading reliability, and stunning part quality using the Form 4L ecosystem.

Formlabs Form 4L
Prices start at US$9,999 with resins starting at US$79
Formlabs Form 4L Features

Formlabs Form 4L Benefits

Low Force Display Printing
Form 4L’s speed is driven by Formlabs’ new Low Force Display™ Print Engine, a powerful combination of ultra-high power LEDs, collimating lenses, optical filters, and a robust liquid crystal display.
Together they cure each layer of resin rapidly — regardless of part size or quantity. With tight tolerances, parts printed in every resin on Form 4 will match your design parameters, every time.

Tackle Any Problem
Leverage high-performance materials optimized for impact resistance, rigidity, flame retardancy, flexibility, and more.
Non-acrylate chemistries like true silicone, ceramic, and polyurethane materials. Certified third-party materials and open mode available.
Option to customize print performance for your exact part using editable and shareable print settings.

Stunning Parts
Parts with a surface finish that rivals injection molding.
Sharpest details: highly collimated light with pre-tuned anti-aliasing for subpixel resolution.
Smoothest surfaces: lower peel forces and light touch supports.
Most accurate assemblies: ±0.15% XY dimensional tolerances so assemblies always fit.

Unmatched control and reliability
Stop coming back to failed parts! The Formlabs Form 4L features validated print settings and a re-engineered intelligent control system.
Upgraded automatic and fast resin dispensing, and 5L Resin Pumping System. Monitor your prints and manage your printers from anywhere with an integrated camera, printer diagnostic tools, and free Dashboard software.
Easy, effective post-processing with quick release Build Platform Flex, Form Wash, and Form Cure.
Formlabs SLA 3D Printing Process

1. Preform
Go from CAD to printing in minutes with just a few clicks using the free PreForm software.

2. Print
Monitor your prints and manage your printers from anywhere with an integrated camera, printer diagnostic tools, and free dashboard software.

3. Wash & Cure
Easy, effective post-processing in just fifteen minutes with quick release Build Platform Flex, Formlabs Form Wash, and Form Cure.

4. Finish
Use finished parts as they are or opt to sand, paint, coat, or electroplate them.
Formlabs Form 4L 3D Printer Specs
Technology: Low Force Display™ (LFD)
XY resolution: 40 microns
Build volume: 35.3 × 19.6 × 35.0 cm | 13.9 x 7.7 x 13.8 in
Layer thickness: 25–200 µm | 0.001–0.008 in
Average print speed: 80 mm/h
Resin Tank lifetime: 75,000+ layers with any Formlabs material
Printer weight: 58.5 kg | 129 lb
Printer dimensions: 66.4 x 52.8 x 79.4 cm | 26.1 x 20.8 x 31.3 in
Warranty and service: One-year warranty included | Paid service and extended warranty options available
Software compatibility: Windows 7 and up | Mac OS X 10.12 and up
File types accepted: STL, OBJ, 3MF

Formlabs SLA Printer Comparison
Discover the differences between the Formlabs Stereolithography machines
| Model | Technology | Build Volume | Min Layer Resolution | Materials | Description |
|---|---|---|---|---|---|
![]() Formlabs Form 4L | LFD / SLA | 353 × 196 × 350mm | 25μm | Resins include: Standard, Tough, Durable, Castable Wax, Rigid, Clear, Flexible, Elastic, Grey Pro, High Temp, Ceramic | Large format SLA with amazing resolution |
![]() Formlabs Form 4 | LFD / SLA | 200 × 125 × 210mm | 25μm | Resins include: Standard, Tough, Durable, Castable Wax, Rigid, Clear, Flexible, Elastic, Grey Pro, High Temp, Ceramic | Desktop SLA with amazing resolution |
![]() Formlabs Form 4B | LFD / SLA | 200 × 125 × 210mm | 25μm | Resins include: Standard, Tough, Durable, Castable Wax, Rigid, Clear, Flexible, Elastic, Grey Pro, High Temp, Ceramic + a variety of Class 1 and Class 2a biocompatible resins | Easy clean-up and smoother parts with tear-away light-touch supports. |
![]() Formlabs Form 4BL | LFD / SLA | 353 × 196 × 350mm | 25μm | Resins include: all standard Formlabs resins + a variety of Class 1 and Class 2a biocompatible resins | A large-format resin printer designed for medical and dental applications with blazing fast speeds. |
![]() Formlabs Form 3L | LFS / SLA | 300 x 335 x 200mm | 25μm | Resins include: Standard, Tough, Durable, Castable Wax, Rigid, Clear, Flexible, Elastic, Grey Pro, High Temp, Ceramic | Large format SLA with amazing resolution |
![]() Formlabs Form 3BL | LFS / SLA | 300 x 335 x 200mm | 25μm | Resins include: Standard, Tough, Durable, Castable Wax, Rigid, Clear, Flexible, Elastic, Grey Pro, High Temp, Ceramic + a variety of Class 1 and Class 2a biocompatible resins | Easy clean-up and smoother parts with tear-away light-touch supports. |
![]() Formlabs Form 3+ | LFS / SLA | 145 x 145 x 185mm | 25μm | Resins include: Standard, Tough, Durable, Castable Wax, Rigid, Clear, Flexible, Elastic, Grey Pro, High Temp, Ceramic | Desktop SLA with amazing resolution |
![]() Formlabs Form 3B+ | LFS / SLA | 145 x 145 x 185mm | 25μm | Resins include: Standard, Tough, Durable, Castable Wax, Rigid, Clear, Flexible, Elastic, Grey Pro, High Temp, Ceramic + a variety of Class 1 and Class 2a biocompatible resins | Easy clean-up and smoother parts with tear-away light-touch supports. |
Materials available for the Formlabs Form 4L

Jewelry Resins
High-detail materials for jewelry design and clean investment casting.
Prototype impressive concept models and manufacture distinctive pieces with sharp resolution and the best surface finish on the market, from idea to fitting to casting.

Standard and Engineering Resins
Functional prototyping materials.
The Formlabs library of versatile, reliable Standard and Engineering Resins is formulated to help you reduce costs, iterate faster, and bring better experiences to market.

Medical and Dental Resins
Formlabs medical resins are validated for FDA-cleared workflows, produced in an ISO 13485 certified facility.
Formlabs Dental Resins enable high precision, low-cost digital production of a range of dental products in-house, including surgical guides, orthodontic models, retainers, and aligners.
Formlabs Form FAQs
Industries we work with
TriMech Advanced Manufacturing is used in a wide variety of industries

Architectural Design & Construction
- Model making
- Urban planning
- Concepts

High Tech & Consumer Products
- Aesthetic and function testing
- Concepts and prototypes
- Sales and marketing models

Dental, Medical & Life Sciences
- Anatomical models
- Medical devices
- Orthopedics
- Prosthetics
- Surgical planning models

Industrial Products, Mold Tool & Die
- Jigs, fixtures, and assembly tooling
- Injection molding
- Silicone molding
- Sand and investment casting
- Thermoforming
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