Cambridge, MA — August 5, 2025 — In a breakthrough that could redefine microfabrication, researchers at MIT have developed a coin-sized 3D printer that uses light to cure resin with extraordinary precision. Unlike traditional FDM or SLA systems, this new photonic chip-based approach leverages micro-optics to direct beams of light into a resin chamber, triggering solidification at pinpoint accuracy.
The system, roughly the size of a U.S. quarter, doesn’t use mechanical arms or printheads. Instead, it employs a photonic integrated circuit that projects interference patterns into a photo-reactive resin, creating solid 3D shapes in seconds. MIT claims this method could pave the way for ultra-compact printers embedded directly into smartphones, wearables, and other electronics.
According to project lead Dr. Helena Brooks, “This is not just a miniaturized printer—it’s a platform for redefining how and where 3D printing happens.”
Applications could include in-body biomedical devices, ultra-fast prototyping of nanoelectronics, and direct fabrication of microscale components inside sealed enclosures.
The research was published in Nature Photonics, and MIT has confirmed plans to collaborate with commercial partners for scaling.
