Expert Pick #05

Formlabs Form 4.

Low-Force Stereolithography 2.0, dual-LCD light engine, and the Form Wash + Form Cure ecosystem — the desktop SLA printer you don't think twice about putting in a paying workflow.

Formlabs Form 4

The Verdict.

9.4/ 10

Gavler Meta-Score

The Form 4 is the printer professionals buy when their work has to be billable. The hardware is good but not better than $400 MSLA printers in raw resolution — what you're paying for is the validated material library, the integrated wash/cure workflow, and a failure rate low enough that you can quote jobs against it.

The Gavler Verdict

Precision Engineering

Low-Force Stereolithography 2.0

Reduced peel forces between layers improve success rates on tall, thin, or hollow geometries that defeat consumer MSLA printers.

Dual-LCD Light Engine

Cures the entire build area faster than the Form 3+ — print times measured in hours rather than overnight runs at the same layer height.

Validated Material Library

Standard, Tough, Flexible, Castable, Dental, and BioMed-grade resins with calibrated print profiles — including biocompatible materials competitors can't legally sell.

Technical Specifications

Build Volume200 x 125 x 210 mm
XY Resolution50 microns
Layer Thickness25–300 microns
Light SourceDual-LCD with Light Processing Unit
TechnologyLow-Force Stereolithography (LFS) 2.0
Material EcosystemFormlabs validated resins (incl. dental, biocompatible)
ConnectivityWi-Fi, Ethernet, USB

The Scoreboard

Expert Consensus94%
Community Rating91%

Expert reviews consistently rate the Form 4 highest among desktop SLA printers for repeatability and material library, but flag the cost as wildly overkill for hobby use. Community rating reflects strong satisfaction in the intended professional segment and a long tail of hobbyists who regret the purchase.

Cast Your Vote

Do you think Formlabs Form 4 deserves the #5 spot in Best 3D Printers?

Best Price Availability.

Prices checked April 2026

Global Critique

The Form 4 delivers up to 4x faster print speeds than the Form 3+ while maintaining the surface quality professionals expect from Formlabs.

All3DP

Formlabs's validated material library — particularly the dental and biocompatible resins — is the moat competitors haven't crossed.

3D Printing Industry

If your work has to be billable, the Form 4's failure rate justifies the price tag. If it's a hobby, an Anycubic Photon prints the same nominal resolution for a tenth the cost.

Hackaday

The integrated Form Wash and Form Cure workflow is what makes the Form 4 a professional tool — open MSLA printers are still a manual workflow.

Tom's Hardware