For fast professional resin printing
Formlabs Form 4
A professional Low Force Display SLA resin printer with a 200 × 125 × 210 mm nominal build volume, most prints completing in under 2 hours per Formlabs.
In short The Formlabs Form 4 is an resin (MSLA) 3D printer with a 200 × 125 × 210 mm (7.9 × 4.9 × 8.3 in) build volume. Formlabs claims up to 100 mm/h; the printer measures 398 × 367 × 554 mm (15.7 × 14.4 × 21.8 in) and weighs 18.3 kg (40.3 lb).
Documentary analysis · Not personally tested
Resin · MSLAWhy consider it?
Low Force Display technology with 60 LEDs and collimating lenses, XY dimensional tolerances advertised at ±0.15%, and an automated resin cartridge and dispensing system per Formlabs.
What to verify
The cover shields against ambient light, but a separate wash and UV cure station is still needed for post-processing; exact bundle contents depend on the package chosen.
Formlabs Form 4 specifications
- Technology
- Resin (MSLA)
- Build volume
- 200 × 125 × 210 mm (7.9 × 4.9 × 8.3 in)
- Printer dimensions
- 398 × 367 × 554 mm (15.7 × 14.4 × 21.8 in)
- Weight
- 18.3 kg (40.3 lb)
- Enclosure
- Protective cover
- Claimed print speed
- 100 mm/h
- Multicolor
- One resin cartridge at a time; no automatic color or material switching.
- Materials
- A broad Formlabs resin library (Rigid, Tough 1500, Clear, High Temp, Biocompatible, Ceramic, Castable, Silicone 40A, Elastomeric) plus an Open Material Mode per Formlabs.
- Screen
- 7-inch touchscreen
- Built-in camera
- Yes
- Connectivity
- Wi-Fi, Ethernet, USB
How much space does it need?
The Formlabs Form 4 measures 398 × 367 × 554 mm (15.7 × 14.4 × 21.8 in) for a 200 × 125 × 210 mm (7.9 × 4.9 × 8.3 in) build volume: the dashed box is the printer, the solid cube the largest theoretical part, about 6% of the machine’s volume. Add room for the spool or multicolor unit, cables and ventilation.
Source: official Formlabs pages (formlabs.com), checked September 28, 2026. Manufacturer claims, not our measurements. Build volume is nominal: orientation, supports and reserved zones can reduce the usable space.
Which projects is it for?
The Form 4 targets workshops and engineering teams that want precise resin parts without the footprint of an industrial machine. The 200 × 125 × 210 mm nominal build volume per Formlabs suits functional prototypes, short-run parts, and dental or medical models depending on the resin used.
The advertised speed keeps most prints under 2 hours, based on Formlabs' 80th-percentile part height benchmark, which changes the workshop logic compared with conventional resin printing where waits run several hours.
Materials and setup
Low Force Display technology relies on a backlight unit with 60 high-power LEDs paired with collimating lenses, advertised by Formlabs for fast, uniform curing across the whole plate, with a 50 µm pixel size.
The resin library spans general prototyping, engineering parts (glass-filled Rigid, Tough 1500), biocompatible, ceramic, castable, and soft silicone resins, plus an Open Material Mode for third-party resins per Formlabs.
What the bundle includes or not
Formlabs sells several purchase tiers (Complete Package and beyond); the exact contents — resin cartridges, build platform, post-processing accessories — depend on the tier chosen and should be checked on the retailer's listing before buying.
The resin cartridge and dispensing system automates refills during printing per Formlabs, but washing and UV curing happen on separate stations that need to be budgeted for alongside the printer itself.
Alternatives to compare
For a larger footprint with the same LFD technology, the Form 4L offers 4.6x the volume per Formlabs, at the cost of a bigger machine. For a lower-cost consumer resin option, the Saturn 4 Ultra covers a more hobbyist use case.
The resin printer buying guide helps weigh advertised precision against the full budget (machine, resins, post-processing) between a professional resin printer like the Form 4 and a consumer machine.
Similar printers to compare
Sources and limits
- Source: official Formlabs pages (formlabs.com), checked September 28, 2026. Manufacturer claims, not our measurements.
- How we assess specifications
We have not measured noise, real printing speed, accuracy or reliability, so none of these is rated here.