microArch S140

3d printing Microfluidics

Built for Precision, Flexibility, and Control

Fully Customizable Print Parameters

Take complete control over every build — exposure, layer thickness, and process settings are fully adjustable for users who want to optimize at the edge of what's possible, with automatic parameter options for everyday ease of use. The S140 adapts to your process, not the other way around.

Engineered for Consistency

A heated resin vat maintains stable printing temperatures across complex environments and diverse materials, while a laser displacement sensor enables precise leveling and calibration and an integrated bubble scraper clears air bubbles from the resin before polymerization. Every system on the S140 is designed to make 10µm results repeatable.

Open Material System

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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endoscope shell

Endoscope Shell

3D printed on the microArch S140 with 150µm wall thickness.

Electronic Connector

Electronic Connector

3D printed on the microArch S140 with 140µm slots and walls.

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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3d printing Microfluidics

Specifications

Resolution x Accuracy x Precision

The microArch S140 delivers consistent dimensional performance at 10µm optical resolution with ±1µm XY positional accuracy — in a desktop system weighing just 85kg. Three flexible print modes — single exposure, multi-exposure, and array — allow engineers to optimize each build for part size, precision, or density depending on application requirements.

Features

  • Open Material System: Compatible with 405nm resin formulations prepared in-house or sourced from other suppliers — enabling materials research, custom formulation development, and application-specific material selection that closed systems can’t support.
  • Fully Customizable Printing Parameters: Complete control over build settings for process optimization and research applications, with automatic parameter options available for streamlined day-to-day operation.
  • Fine Feature Capability: Prints minimal 3D feature sizes of 50µm or better, with surface finishes of 0.4–0.8µm Ra (top) — the precision and quality the most demanding micro parts require.
  • Heated Resin Vat: Maintains consistent printing temperature for reliable performance across diverse materials and operating environments.
  • Three Flexible Print Modes: Switch between single-exposure, multi-exposure, and array modes to optimize each build for part size, precision, or density.
  • True to CAD Output: 10µm resolution and ±1µm XY positional accuracy ensure printed parts match CAD geometry precisely — eliminating the interpretation and dimensional drift common in lower-resolution additive systems.

PµSL Technology

The microArch S140 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 — delivering the speed, precision, and repeatability that make 10µm resolution practical in a desktop system. The result is a platform capable of producing intricate, exact, and replicable micro-scale parts, with the openness and flexibility that research and development environments require.

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 94mm x 52mm x 45mm
  • LAYER THICKNESS 10~40μm
  • TOLERANCE +/- 25μm
  • POWER SUPPLY 2kW
  • PRINTER DIMENSIONS 650mm x 700mm x 790mm
  • PRINTER WEIGHT 85kg
  • VOLTAGE 110-220V
  • CERTIFICATIONS CE
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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.

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