Orbital Matter 3D Prints First Rigid Beam From a Free-Flying Satellite
Orbital Matter's Replicator 2 printed a rigid half-meter beam in open space, advancing plans for vast solar arrays and orbital data centers at scale by 2030.
Summary
Orbital Matter says Replicator 2 became the first free-flying spacecraft to 3D print a rigid structure in orbit, producing a half-meter cylindrical beam in vacuum. SpaceX launched the small satellite on a rideshare mission in summer 2026 with four printers that extrude coiled custom plastic resin and cure it using ultraviolet light, a process likened to combining cement and water. Two printers were intended to deploy flexible solar arrays. One failed after an anomaly, while the successful boom deployed its array.
The demonstration could replace complex folded solar arrays and telescope mirrors with structures manufactured after launch, easing rocket-fairing constraints while expanding power generation and heat dissipation for spacecraft and orbital data centers. NASA funded Redwire's 2023 vacuum-chamber beam test, but that mission never launched; earlier microgravity printing remained inside the pressurized International Space Station. Resin capacity currently limits boom length, although Orbital Matter considers 100-meter structures feasible, compared with the 20-meter arrays on SpaceX's Starlink V2 satellites.
CEO Jakub Stojek and CTO Robert Ihnatsin, previously at FormLabs, co-founded Orbital Matter in 2022 and raised a $3 million seed round. The company developed Replicator 2 with the European Space Agency and Thales Alenia. A larger 2028 demonstration targets a 5-kilowatt solar array, followed by more than 100 kilowatts per wing by 2030. Satellite builders are also evaluating its printer-assisted deployment system, PADS, for extending solar panels, antennas and other components.
Positives
- Replicator 2 printed a half-meter rigid cylindrical beam in vacuum from a free-flying satellite, which Orbital Matter calls an orbital first.
- The successfully printed boom deployed a flexible solar array despite another printer experiencing an anomaly.
- Orbital Matter believes its resin-based process could produce 100-meter booms, five times the length of Starlink V2 solar arrays.
- A 2028 demonstration will target 5 kilowatts of solar power, progressing toward more than 100 kilowatts per wing by 2030.
- The European Space Agency, Thales Alenia and prospective satellite customers are supporting or evaluating Orbital Matter's technology.
Risks & concerns
- One of Replicator 2's two solar-array printers failed after an anomaly, exposing reliability challenges for autonomous orbital manufacturing.
- The demonstrated beam measured only half a meter, far short of Orbital Matter's proposed 100-meter structures.
- Onboard resin capacity limits boom length, requiring larger material supplies for more ambitious deployments.
- The 5-kilowatt and 100-plus-kilowatt systems remain future targets for 2028 and 2030 rather than demonstrated capabilities.
- Redwire's NASA-funded 2023 vacuum-chamber printing project never launched, underscoring the difficulty of moving orbital manufacturing beyond ground tests.