• Fill the platform without “penalty” — large-format resin printing that scales for volume production
• Large prototypes, pre-production validation, and production tooling with consistent dimensional performance
• Material ecosystem + Open Material Mode for compatible third-party resins
• Simple guided workflow from setup to wash and cure (manual or automated)
• Centralised monitoring, history, and alerts via Dashboard

Large-format parts with presentation-grade finish and repeatable fit.

Build bigger. Assemble less.

Print large enclosures, fixtures, mould masters, and end-use parts in one piece to eliminate seams, reduce assembly labour, and improve strength and aesthetics.

• Build volume: 35.3 × 19.6 × 35.0 cm (24.2 L)
• Ideal for large prototypes, jigs/fixtures, thermoforming tools, and production aids

Speed that scales with size

Form 4L’s LFD print engine is designed to cure layers rapidly across the platform. That means big jobs can stay fast — even when you fill the build area.

• Average print speed: 24 mm/hour across all materials
• Maximum print speed: up to 80 mm/hour
• Large full-build prints can be completed in under ~6 hours*

*Results depend on resin, layer height, geometry, and layout.

Smooth surfaces + sharp details

Get crisp features and clean edges with 46 µm pixels and pre-tuned anti-aliasing for subpixel detail — designed to reduce finishing time even on large parts.

• XY resolution: 46 µm with pre-tuned anti-aliasing
• Layer thickness: 25–200 µm

From model to finished part

• Prepare: Auto-orientation, supports, and printability checks in PreForm.
• Print: Start with validated settings designed for repeatable results.
• Wash + Cure: Achieve target properties with a consistent post-processing workflow.
• Scale: Monitor jobs and consumables across printers with Dashboard.

Recommended add-ons for large format

• Form Wash L for automated cleaning at scale
• Form Cure L for controlled curing and repeatable material properties
• Additional Resin Tank(s) for faster changeovers

Optional workflow upgrade: Form Wash L.

Optional workflow upgrade: Form Cure L.

Large format printing you can depend on

• Validated workflow: tuned settings + guided software helps reduce failures and rework.
• Repeatability: large parts that hold fit across builds and across users.
• Resin Tank lifetime: estimated 75,000+ layers with Formlabs materials.

For reliability benchmarking, Formlabs has published independent testing on Form 4-series performance. If you want, we can help map that reliability to your application and material choice.

Easy to adopt. Easy to run.

The Form 4L workflow is designed for teams: fast onboarding, predictable output, and centralised monitoring to keep production moving.

• PreForm for setup: orientation, supports, print checks, and slicing
• Dashboard for monitoring: history, status, and alerts
• Input file types: STL, OBJ, 3MF  |  Output: FORM

Large Prototyping

• Full-scale models for form/fit reviews and customer presentations
• Rapid iterations without splitting parts into multiple prints

Tooling, Jigs & Fixtures

• Durable fixtures, nests, assembly aids, and custom tooling
• Consistent dimensional performance for repeatable processes

Manufacturing & Short-Run Production

• High throughput for end-use parts and production components
• Scale output by filling the platform or running multi-printer workflows

Education & Research

• Approachable workflow for shared labs
• Central monitoring to support multiple users

Why teams choose Form 4L

• Large-format speed: fast prints even when you scale to big parts and big batches
• Presentation-grade output: smooth surfaces and sharp detail to reduce finishing time
• Material ecosystem: broad material options plus Open Material Mode
• Operations-ready: monitoring, history, and alerts with Dashboard

What our team likes

• Large parts that print cleanly without “babysitting”
• Reduced assembly thanks to one-piece prints
• A workflow that scales well for teams (PreForm + Dashboard)

Form 4L Components (typical)

• Form 4L 3D Printer
• Resin Tank
• Build Platform

Package contents can vary by configuration (printer-only vs workflow bundles). Tell us your application, resin needs, and throughput goals, and we’ll spec the best-fit kit.

Optional workflow upgrades

• Form Wash L (automated cleaning)
• Form Cure L (controlled curing)
• Additional Resin Tank(s) for rapid material changeovers

1) What printing technology does Form 4L use?

Form 4L uses MSLA with the Low Force Display™ (LFD) print engine, designed to deliver fast, consistent curing across a large format.

2) Can I use third-party resins?

Yes. Form 4L supports compatible third-party resins via Open Material Mode.

3) Which software do I need?

Use PreForm to prepare prints and Dashboard for management, monitoring, history, and alerts.

4) What file types can I send to PreForm?

PreForm supports STL, OBJ, and 3MF inputs, and outputs a FORM file for printing.

5) Do I need post-processing equipment?

Washing and curing are part of standard resin workflows. You can do this manually, but Wash L and Cure L are designed to automate and standardise the process for large prints.

6) What’s the easiest way to choose the right configuration?

Tell us what you’re printing (application, material needs, part size, throughput goals) and we’ll recommend the most practical package — printer-only or a complete wash/cure workflow.