microArch S240

microArch S240

Built for Scale, Speed, and Strength

Maximum Build Volume

At 100 × 100 × 75mm, the S240 offers the largest build envelope in the BMF lineup — enabling production of larger single parts or high-density arrays of smaller components in a single run.

Array Printing for Batch Production

The S240's dedicated array mode maximizes the 100 × 100 × 75mm build envelope for high-density runs of identical parts — enabling a level of per-build output that single-exposure systems simply can't match. Combined with three switchable print modes, the S240 adapts to part size, precision, or production density as your application demands.

Industrial grade materials

Engineered to process high-viscosity resins up to 20,000cP, composite polymers, and ceramics — enabling functional parts with the material properties, surface finish, and dimensional accuracy that end-use production applications demand.

What 10µm Micro-Precision Delivers

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chip socket

Chip Socket

3D printed on the microArch S240 with 350µm holes, 50µm apart.

distal tip

Distal Tip

3D printed on the microArch S240 with 600µm wall thickness and 600µm wide entrance holes.

Ready to Scale Micro-Precision Production?

Talk with our team to explore how the microArch S240 supports applications including medical devices, MEMS, microfluidics, biopharma, electronics, and education and research.

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microArch S240

Specifications

Resolution x Accuracy x Precision

The microArch S240 is engineered to deliver consistent dimensional performance at 10µm resolution across the largest build volume in the BMF lineup. Three flexible print modes — single exposure, multi-exposure, and array — allow engineers to optimize for part size, throughput, or production density depending on application requirements.

Features

  • Advanced Roller System:Spreads resin layers in seconds for build speeds up to 10× faster than conventional PµSL platforms — enabling higher output without compromising 10µm resolution or surface quality.
  • High-Viscosity Material Support: Processes materials up to 20,000cP viscosity, enabling the use of stronger, more functional engineering resins and industrial-grade composite polymers that lower-viscosity systems cannot handle.
  • Ceramic Printing: One of the few PµSL systems capable of printing ceramic materials — opening applications in thermal management, RF/microwave components, and advanced research that require non-polymer material properties.
  • Three Flexible Print Modes: Switch between single-exposure (Mode 1), large-area multi-exposure (Mode 2), and high-density array (Mode 3) to optimize each build for part size, throughput, or production density.
  • Mirror Finish, Sharp Edges, Smooth Channels: Surface quality that mirrors the intended end part — critical for functional assemblies, optical components, and fluidic devices where geometry and finish directly affect performance.
  • True to CAD Output: 10µm resolution and ±25µm tolerance ensure that printed parts match CAD geometry precisely — eliminating the interpretation and dimensional drift common in lower-resolution additive systems.

PµSL Technology

The microArch S240 is powered by BMF’s proprietary PµSL technology — an advanced additive manufacturing process that projects patterned UV light through a precision optical system to photopolymerize entire resin layers simultaneously at micro-scale resolution.

Unlike point-by-point laser systems, PµSL exposes an entire layer in a single flash, enabling the fast print speeds the S240’s roller system is designed to complement. The result is a system capable of producing intricate, exact, and replicable micro-scale parts — with the throughput and material range that industrial production environments require.

The S240’s step-and-repeat optical process allows it to achieve both 10µm feature resolution and a 100 × 100mm build area — overcoming the traditional tradeoff between resolution and build volume that limits competing platforms.

Features
  • PRINTING TECHNOLOGY PμSL
  • LIGHT SOURCE UV-LED
  • LIGHT WAVELENGTH 405nm
  • PRINTING MATERIAL Photosensensitive resins, ceramic
  • INPUT DATA FILE FORMAT STL
  • XY OPTICAL RESOLUTION 10µm
  • XY POSITIONAL ACCURACY ±1μm
  • PRINT SIZE 100mm x 100mm x 75mm
  • LAYER THICKNESS 10~40μm
  • TOLERANCE +/- 25μm
  • POWER SUPPLY 2kW
  • PRINTER DIMENSIONS 650mm x 700mm x 790mm
  • PRINTER WEIGHT 350kg
  • VOLTAGE 110-220V
  • CERTIFICATIONS CE

Testimonials

As one of BMF’s first customers, we’ve been impressed by the performance of their high-resolution 3D printing solutions. While evaluating the first-generation microArch P150, we achieved accuracy unmatched by other systems in our additive lab. With its high part quality, production-ready throughput, and broader material capabilities, the microArch S350 has become a critical tool for printing high-resolution connectors for our customers.

Xiaoming Luo

Principal 3D Printing Engineer, Aerospace, Defense, and Marine (AD&M) at TE Connectivity

The quality and accuracy of BMF PµSL parts is very unique, and truly mimic expensive micro molded parts, and now we can have parts ready for test within 1-2 days rather than 1-2 months, as well as reducing the huge costs associated with tooling manufacture and reworking as the new products evolve. We can also explore designs previously out of reach due to manufacturing limitations. Our main focus is to lift our prototyping capabilities to the highest possible level, both in quality and speed. BMF will help us accomplish that.

Sally van der Most

DSS Manager, Sonion NL

We have been looking for some time for a machine that can reliably produce parts in this size range as we were at the limits of other machines or would have to sink cost into other manufacturing methods- typical micro injection molding or other micro machining activity that can be expensive and prohibitive to R&D iterations. The ability to rapidly produce these types of parts combined with an open ecosystem is unmatched.

Sam Wilson

STORM Lab UK, Institute of Robotics and Autonomous Sensing, University of Leeds

Request a Benchmark Part

We’d be happy to manufacture a benchmark part so you can assess our quality.

Request a Benchmark part