SLAManufacturer image: FormlabsFormlabs Form 3L
Large-format laser SLA platform using two Light Processing Units.
Source reviews: 2026-10-16.
Specifications are reported claims, not independent test results.
The details that matter.
Published specifications for this model. Follow a field's source for its configuration and measurement conditions; older fields refer to the profile's reference list.
| Introduction year | 2019 |
|---|---|
| Model family | Form resin · large format |
| Process | SLA |
| Build envelope (X × Y × Z) | Not verified |
| Nominal box volume | Not verified |
| Enclosure | Not verified |
| Materials cited in this profile | Photopolymer resin |
| Manufacturer listing status | Listed by manufacturer |
| Regional stock and price | Check the manufacturer |
| Market grouping | Professional · editorial grouping |
Technical specifications
| Machine dimensions (mm) | 770 × 520 × 740 |
|---|---|
| Machine weight (kg) | 54.4 |
| Print Engine | Low Force Stereolithography (LFS) |
| Light Processing Units | 2 |
| Resin Tank | Flexible film |
| Optics Service | User-replaceable Light Processing Unit |
| Job Management | Remote submission and shared print queue |
Build claims retained for review: product comparison 335 × 200 × 300 mm; current PreForm design guidance 335 × 200 × 320 mm. No automated fit filtering should use either until reconciled.
How LFS works
A moving Light Processing Unit uses lenses and mirrors to deliver the laser perpendicular to the build plane. A flexible tank reduces separation forces during printing. Form 3 uses one optical unit, while Form 3L uses two.
Workflow and service
The introduction describes remote job submission, a shared queue, sensing and alerts, and user-replaceable components. These features belong to the LFS generation; they should not be confused with the LCD-based Form 4 print engine.
Introduced in 2019.
Announced for preorder April 2, 2019. Formlabs separately confirms shipping began in September 2020.
Family: Form resin · large format · Current / announced
What changed
- Scaled LFS to a large-format system with two laser units and automatic dispensing from two resin cartridges.
Read this with the specifications
Current support lists new and factory-reconditioned Form 3L while stock lasts through 2026. Build remains null because the product page states 335 × 200 × 300 mm while current support states 335 × 200 × 320 mm; this audit has not resolved the revision/context difference.
A larger nominal envelope does not establish better print quality. Fit depends on the configuration, usable area, supports, and orientation.
