# Boston Micro Fabrication (BMF)

> Boston Micro Fabrication (BMF) builds 3D printers that work at a scale most machines can't reach - resolutions down to 2 microns with tolerances of about plus or minus 10 microns. Its microArch printers use a proprietary process called Projection Micro Stereolithography (PuSL) to make tiny, complex parts for medical devices, microfluidics, optics, connectors and semiconductor packaging. Founded in 2016 and headquartered in Maynard, Massachusetts, BMF has placed machines with more than 2,000 customers across roughly 35 countries.

- **Founded:** 2016
- **Headquarters:** Maynard, Massachusetts, United States
- **Founders:** Nicholas Fang (Co-founder / MIT professor, co-developer of PuSL technology), Chunguang Xia (Co-founder), Xiaoning He (Co-founder)
- **Team size:** ~71 employees (estimate)
- **Products:** microArch S-Series (S140, S150, S230, S240, S350), microArch D1025 (hybrid / dual resolution), PuSL technology, Resin materials portfolio, Contract micro manufacturing services
- **Notable:** Commercialized Projection Micro Stereolithography (PuSL) for resolutions down to 2 microns., Grew to 2,000+ customers and machines in 200+ locations across roughly 35 countries., Raised about $90M total, including a $43M Series C (2022) and $24M Series D (2023).

## Products & services

- **microArch S-Series (S140, S150, S230, S240, S350)** — Micro-precision 3D printers spanning 2um, 10um and 25um resolution tiers, with part tolerances from roughly +/-10um to +/-50um, for prototyping and short-run production of micro-scale parts.
- **microArch D1025 (hybrid / dual resolution)** — Industry-first hybrid micro-precision printer that can combine 10um and 25um resolution within the same print - even within a single layer - to balance detail and throughput.
- **PuSL technology** — Projection Micro Stereolithography: projects patterned UV light through a precision optical system to photopolymerize an entire resin layer in a single flash at micro-scale resolution.
- **Resin materials portfolio** — Engineering and biocompatible resins including BMF Clear (>90% light transmittance), high-temperature (HTL/HT 200), tough, biomedical (BMF MED) and ceramic (AL Ceramic) formulations.
- **Contract micro manufacturing services** — On-demand micro 3D printing services for customers who need micro-scale parts without buying a machine.

## Achievements

- Commercialized Projection Micro Stereolithography (PuSL) for resolutions down to 2 microns.
- Grew to 2,000+ customers and machines in 200+ locations across roughly 35 countries.
- Raised about $90M total, including a $43M Series C (2022) and $24M Series D (2023).
- Launched the industry's first hybrid, dual-resolution micro-precision 3D printer (microArch D1025) in 2024.
- Opened a dedicated Research Institute in San Diego to drive next-generation applications.

## Latest updates

- **2024-05** — Launched the microArch D1025, the industry's first hybrid micro-precision 3D printer series with dual 10um/25um resolution.
- **2023-08** — Secured $24M Series D funding led by Guotai Junan Securities to expand R&D and medtech collaborations.
- **2022-07** — Raised $43M Series C and doubled its installed base to 200+ customer locations.

## Links

- Website: https://bmf3d.com
- LinkedIn: http://www.linkedin.com/company/bostonmicrofab
- Twitter/X: https://twitter.com/bmf3d
- YouTube: https://www.youtube.com/c/bostonmicrofabrication
- Facebook: https://www.facebook.com/bmf3d/

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Last updated: 2026-06-15