·5 min read
SpaceX & Space
Relativity Space Terran R: 3D Printing an Entire Rocket
Taha Abbasi examines Relativity Space’s ambitious Terran R rocket — a medium-lift launch vehicle that is almost entirely 3D printed, representing the most radical manufacturing approach in the launch industry. While SpaceX revolutionized rockets through reusability, Relativity is attempting to revolutionize how rockets are built, using massive metal 3D printers to reduce part counts, manufacturing time, and factory complexity.
The company’s thesis is provocative: traditional rocket manufacturing uses tens of thousands of individual parts, each requiring tooling, inspection, and assembly. 3D printing can reduce this to hundreds of parts, dramatically simplifying production and enabling rapid iteration. Relativity’s Stargate printers are the largest metal 3D printers in the world, capable of producing rocket structures in days rather than months.
From Terran 1 to Terran R
As Taha Abbasi notes, Relativity’s first rocket, Terran 1, launched in March 2023. While it did not reach orbit (the upper stage experienced an anomaly), it became the first 3D-printed rocket to reach space — validating the core manufacturing thesis. The company then made a bold decision: abandon the small-launch Terran 1 and go directly to the medium-lift Terran R, which is reusable and targets the same market as Falcon 9.
This strategic leap, while risky, positions Relativity in the most commercially attractive segment of the launch market. Small launch vehicles have struggled to achieve economically viable flight rates. Medium-lift reusable vehicles serve the satellite constellation market (Starlink, OneWeb, Kuiper) that generates the highest launch demand.
The Manufacturing Revolution
Taha Abbasi highlights the broader implications of Relativity’s approach. If 3D printing can produce flight-worthy rocket components at scale, the same technology could transform aerospace manufacturing more broadly — aircraft parts, satellite structures, engine components. The defense and commercial aerospace industries are watching Relativity’s progress closely.
Competition and Challenges
Terran R enters a competitive market. SpaceX’s Falcon 9 is the proven incumbent. Blue Origin’s New Glenn is entering service. Rocket Lab’s Neutron is in development. ULA’s Vulcan has flown. As Taha Abbasi observes, Relativity’s differentiation is not the rocket’s capabilities (which are comparable to competitors) but its manufacturing process. If 3D printing enables faster production at lower cost, Relativity could offer price and schedule advantages that offset its late market entry.
What This Means for Space Access
The broader significance, as Taha Abbasi sees it, is that Relativity is testing whether software-defined manufacturing can do for rockets what software-defined vehicles did for cars. If successful, Relativity proves that manufacturing innovation — not just design innovation — can create competitive advantages in the most demanding engineering domain. First flight of Terran R is targeted for 2026, making this a pivotal year for the company and the 3D-printed rocket concept.
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About the Author: Taha Abbasi is a technology executive, CTO, and applied frontier tech builder. Read more on Grokpedia | YouTube: The Brown Cowboy | tahaabbasi.com
Taha Salahuddin Abbasi
Engineer. Builder. Architect.
