Blazing speed meets surgical precision

Form 4B is a blazing fast medical and dental 3D printer that offers the most diverse materials library for healthcare. Built on the same Low Force Display™ (LFD) print engine as Form 4, it delivers 4× the speed and 30% more build volume than Form 3B+ — so you can create biocompatible, sterilizable anatomical models, surgical guides, and medical devices fast, with easy workflows, leading reliability, versatile materials, and stunning part quality. Whether you're running a hospital point-of-care lab, a dental practice, or a medical device production line, Form 4B lets you deliver quality you can trust when it matters most. No compromises.

Why choose Form 4B?

• Blazing fast — most prints finish in less than 2 hours, with a maximum print speed of 100 mm/hour. Form 4B prints 4× faster than Form 3B+, and print time stays similar whether you print one part or a full build platform of many.
• Versatile — 38 industry-leading Formlabs materials, including 15 biocompatible resins for anatomical models, surgical guides, dental appliances, and medical devices, with more materials in development.
• Open system — freedom to print your preferred third-party 405 nm resins with Open Material Mode (included in the Complete and Premium Packages).
• Reliable — a 98.7% print success rate measured by an independent global leader in product testing, so you stop coming back to failed prints.
• Precise — consistently accurate across the build platform, with ±0.15% XY dimensional tolerances, 50 µm pixel size, and pre-tuned anti-aliasing for the sharpest details and smoothest surfaces.
• Intuitive — the same trusted Formlabs workflow, now 4× faster. Anyone can learn to print in about 15 minutes with PreForm's one-click print setup and no-hassle cartridges and tanks.

What's included

The Formlabs Form 4B Complete Package includes the following items:

• (1) Form 4B Printer
• (1) Form 4 Resin Tank
• (1) Form 4 Mixer
• (1) Form 4 Flex Build Platform
• (1) Form 4 Finish Kit
• (1) Form Wash V2
• (1) Form Cure V2 120V
• (1) Solvent Pump
• (1) Form 4B Dental and Medical Service Plan 3 Years

Unprecedented throughput: 4× the speed and 30% more build volume

Form 4B's Backlight Unit generates a uniform area projection of ultra-high-power light using 60 LEDs and collimating lenses, curing an entire layer at once with excellent quality and accuracy anywhere on the build platform. Combined with a low-force release texture, a flexible-film resin tank, and high-speed automatic resin handling, the new print engine means your print time is similar whether you're printing one part or a full build of many parts. In Formlabs' head-to-head benchmarks against Form 3B+ and comparable DLP and LCD printers, Form 4B led or matched the field on real clinical and device parts:

• Surgical sizing trial (restor3d) — 4 minutes per part on Form 4B, versus 26 minutes on Form 3B+.
• Orthopedic cutting guide (Insight Surgery) — 7 minutes per part on Form 4B, versus 38 minutes on Form 3B+.
• Fibula free flap (TechFit) — 2 hours 27 minutes per part on Form 4B, versus 7 hours 36 minutes on Form 3B+.
• Surgical ratchet — 44 minutes per part on Form 4B, versus 3 hours 51 minutes on Form 3B+.
• Anatomical ilium (Insight Surgery) — 3 hours 30 minutes per part on Form 4B, versus 14 hours 52 minutes on Form 3B+.

“The print speed improvement struck us the most. In my eight years' experience with additive manufacturing, I haven't seen SLA machines print parts that quickly. Almost every build, the Form 4B has been faster.” — Elena Tercheria, Additive Manufacturing Manager, restor3d

Quality you can trust when it matters most

Form 4B delivers the sharpest details, smoothest surfaces, and most consistent accuracy of any Formlabs medical printer to date — across the entire build platform, print after print. That means anatomical models that faithfully reproduce patient scans, surgical guides that seat correctly, and dental appliances that fit the first time.

• Consistently accurate — ±0.15% XY dimensional tolerances on 1–30 mm features, and uniform light delivery across the build platform so every part in a full build comes out the same.
• Smoothest surfaces — lower peel forces, light-touch supports, and 50 µm pixel size with pre-tuned anti-aliasing leave minimal marks and a clean finish.
• Sharpest details — highly collimated light and 50 µm pixel size with pre-tuned anti-aliasing for subpixel resolution.
• Restorative model accuracy — with Precision Model Resin, on average 99.7% of surfaces fall within 100 µm of the CAD model and 95% within 50 µm.

Effortlessly create parts for any medical or dental application

Form 4B supports 38 Formlabs materials, including 15 biocompatible resins, giving healthcare users the most diverse materials library available — with more exciting materials currently in development. The BioMed family covers clear, rigid, flexible, elastic, and opaque biocompatible, sterilizable options, and Open Material Mode unlocks third-party 405 nm photopolymer resins for even more flexibility.

• BioMed Clear — clear, rigid, biocompatible, sterilizable, and transparent for anatomical models, fluid-path devices, and visualization.
• BioMed Durable — a tough, biocompatible resin for devices and instruments that need to withstand impact and repeated handling.
• BioMed Flex 80A & BioMed Elastic 50A — flexible and elastic biocompatible options for soft-tissue models, patient-contacting components, and wearables.
• BioMed White, Black & Amber — opaque biocompatible resins for models, guides, and housings that need a specific look.
• Dental materials — the same Form 4B print engine runs the Formlabs dental library for models, surgical guides, aligners, splints, and restorations.
• Open Material Mode — print your preferred third-party 405 nm resins alongside Formlabs materials.

Unmatched reliability. Stop coming back to failed prints.

Form 4B was measured to have a 98.7% print success rate by an independent global leader in product testing. Six upgraded sensors precisely control resin temperature, resin level, print forces, and print status, and every printer is factory calibrated so you get consistent, repeatable results from the first print — critical when a surgical case or a patient appointment depends on the part.

• Validated print settings — every Formlabs material ships with optimized, tested print settings.
• Intelligent control systems — high-speed conduction resin heating with infrared temperature sensing, ultrasonic resin level sensing, a Z-axis force sensor, a resin cartridge load cell, and a printer leveling sensor.
• Long-lasting consumables — the Form 4 Resin Tank is rated for 75,000+ layers with any Formlabs material (roughly 190 average-height prints).
• Factory calibration — every Form 4B is calibrated before it ships.
• Remote monitoring — an integrated 5 MP camera provides live views, timelapses, and print history through Dashboard, and can be easily disabled, covered, or removed for privacy-sensitive environments.

“Formlabs delivers the best customer engagement that we've had in the AM industry and all of that at a price point that makes it really agile for us to be able to fit it into new products. It's got both the support you need and the scale for consistent delivery of product when you need it.” — Ryan Hess, Senior Director, Innovation and Strategy, RICOH 3D for Healthcare

Intuitive to use. The same trusted workflow, now 4× faster.

1. Import your model and prepare your print — smart auto-orientation, advanced support generation, and live printability checks in free PreForm software.
2. Load a material and click print — optimized and validated print settings, no-hassle cartridges and tanks, and automatic resin dispensing.
3. Remove, wash, cure — quick-release part removal, automatic part cleaning with Form Wash, and precision post-curing with Form Cure for peak material properties.
4. Finish and deliver — light-touch supports for quick, clean support removal, enhance surface quality with the curated Finish Kit, then sterilize and package.

The Form 4B ecosystem: complete your 3D printing experience

Form 4B works seamlessly with Form Wash and Form Cure to automate post-processing for biocompatible and dental prints. Form Wash agitates parts in IPA or Formlabs Resin Washing Solution to remove uncured resin, and Form Cure delivers precise, heated UV post-curing so parts reach the mechanical properties and biocompatibility their validated workflows require — with minimal hands-on labor.

Choose the Form 4B package that fits your workflow:

• Formlabs Form 4B Basic Package — everything you need to start printing: printer, resin tank, build platform, and finishing essentials. Ideal if you already own post-processing equipment, with optional 1-, 3-, or 5-year Form 4B Dental and Medical Service Plans.
• Formlabs Form 4B Complete Package (this product) — adds Form Wash V2 and Form Cure V2 for a fully automated print-wash-cure workflow, plus a 3-year Form 4B Dental and Medical Service Plan.
• Formlabs Form 4B Premium Package — built for higher throughput: two Form Wash V2 units, extra build platforms, Finishing Tools, Open Material Mode, and a 5-year Form 4B Dental and Medical Service Plan.

Form 4B Dental and Medical Service Plans

The Formlabs Form 4B Complete Package includes a 3-year Form 4B Dental and Medical Service Plan, extending coverage beyond the standard warranty with priority support and hardware protection for three years.

Specifications

Specifications subject to change. Form Cure V2 included in the Complete and Premium Packages is the 120V model.