When most people think about 3D printing, they think about making large objects. Prototypes, replacement parts, cosplay props, tools, and even furniture all come to mind. But what happens when manufacturers need parts so small they’re measured in microns instead of millimeters?
We stopped by the Boston Micro Fabrication (BMF) booth to see how the company is pushing 3D printing into the world of microscale manufacturing. The parts they were showing weren’t just small—they were tiny enough to fit into applications where traditional manufacturing methods can struggle.
Printing Parts Measured in Microns
One of the first examples BMF showed was a miniature electronic connector housing. While it may look simple, manufacturing parts like these can be surprisingly challenging.
Many electronic connectors require extremely thin walls, small slots, and tightly controlled dimensions. Traditional manufacturing methods such as molding or machining can become difficult or expensive when features get this small, especially for custom designs or low-volume production runs.
According to BMF, their highest-precision systems can produce features as small as 10 microns. To put that into perspective, a human hair is typically around 70 microns in diameter.
The company specializes in producing features in the 10- to 100-micron range, opening opportunities for applications where precision is critical.
Applications Beyond Electronics
While electronics are a major market for BMF’s technology, they are far from the only one.
The company also works with fiber optic applications that require highly accurate arrays of tiny holes and channels. These features can be difficult to manufacture using conventional methods, making microscale 3D printing an attractive alternative.
Medical applications are another growing area. Devices such as endoscope components often require small, intricate geometries and tight tolerances that can benefit from additive manufacturing.
As industries continue to miniaturize products, the need for manufacturing solutions capable of producing tiny, high-precision components continues to grow.
A New Entry Point Into Microscale Printing
One of the highlights at the booth was BMF’s newest printer, which had only been released a few weeks before RAPID + TCT.
Unlike the company’s highest-end systems, which focus on maximum precision, this new machine is designed to make microscale printing more accessible.
The desktop-sized system can produce features down to approximately 100 microns while offering 25-micron XY resolution. While it doesn’t reach the extreme precision levels of BMF’s flagship machines, it provides an entry point for organizations that need high-resolution printing without the investment required for more advanced systems.
Potential users include:
- Universities and research institutions
- Medical device developers
- Electronics manufacturers
- Product development teams
- Commercial R&D organizations
For many of these groups, the machine can help bridge the gap between traditional desktop 3D printing and true microscale manufacturing.
Designed for Ease of Use
One challenge with highly specialized equipment is often usability. BMF has focused on simplifying the workflow so users can get started quickly.
The printing process begins by selecting a preloaded model, choosing a material, selecting a layer height, and starting the print. Material-specific parameters are automatically loaded by the software, reducing setup complexity while still allowing experienced users to fine-tune settings when necessary.
This approach helps make advanced manufacturing technology more approachable for organizations that may not have dedicated additive manufacturing specialists on staff.
Materials for Specialized Applications
BMF’s systems utilize UV-curable photopolymers designed for a variety of applications.
Different materials are optimized for specific requirements, including:
- Biocompatibility for medical applications
- Mechanical strength for functional components
- High-temperature performance for demanding environments
These material options allow users to tailor printed parts to the needs of their particular application.
From Prototyping to Production
Like many additive manufacturing technologies, microscale 3D printing is commonly used for prototyping. However, BMF is increasingly seeing customers move beyond prototypes and into end-use production.
For small, highly specialized parts, additive manufacturing can provide advantages in flexibility, customization, and production efficiency. Faster machines and improved materials are helping make production-scale applications more practical than ever before.
Tiny Parts, Big Impact
Microscale 3D printing may not receive the same attention as large-format printers or high-speed consumer machines, but it is quietly enabling innovation in industries that rely on precision manufacturing.
Whether it’s electronic connectors, fiber optic components, medical devices, or future technologies that have yet to be developed, the ability to manufacture parts measured in microns is opening new possibilities for engineers and designers.
Most people think about 3D printing as a way to make things bigger. Companies like Boston Micro Fabrication are proving that sometimes the most impressive innovations come from making things smaller.
For More on Boston Micro Fabrication: https://bmf3d.com/