A Sheffield-based robotics company supported by the Defence Science and Technology Laboratory (Dstl) has developed microfactory technology that automates one of additive manufacturing’s most persistent bottlenecks, with significant implications for military supply chain resilience and on-demand parts production.
Rivelin Robotics has created proprietary control systems that give industrial robots human-like dexterity and perception, enabling them to finish 3D printed components faster, more accurately and more consistently than manual methods across metals, polymers and ceramics. The technology has been developed with Dstl technical expertise and UK Defence and Security Accelerator (UKDSA) funding, and is now being adopted commercially across defence and multiple industrial sectors.
The Problem Being Solved
Additive manufacturing has transformed what is possible in defence production, enabling complex components to be produced rapidly and at relatively low cost. But it has carried a persistent weakness: every 3D printed part requires hand finishing to remove excess material and surface imperfections before it can be used. That process is slow, inconsistent, costly and carries safety risks for the workers performing it.
For defence applications, the consequences are tangible. Naval operations, for example, regularly face extended delays waiting for spare parts, or absorb high costs for local machining when components are needed at short notice in theatre. The manual finishing bottleneck undermines much of the speed advantage that additive manufacturing is supposed to deliver.
Rivelin’s microfactory technology eliminates that bottleneck. Its robots handle complex geometries with the precision previously only achievable by skilled human finishers, but at greater speed, consistency and scale. The economic penalty of hand finishing is removed, and the supply chain dependency on specialist finishing facilities is substantially reduced.
The Defence Implications
The operational resilience case is straightforward. A military unit or naval vessel with access to a Rivelin microfactory can manufacture and finish components on demand, reducing reliance on extended supply chains and the delays and vulnerabilities they introduce. In contested or remote environments where resupply is difficult, the ability to produce finished, usable parts locally is a meaningful capability advantage.
The technology also addresses a broader strategic concern. The UK’s defence supply chain, like those of most allied nations, carries concentrated dependencies on specialist manufacturing and finishing facilities. Distributed microfactory capability reduces that concentration and strengthens resilience at the platform and unit level, not just at the industrial base level.
Commercial Traction and International Reach
Rivelin has now sold microfactories to five customers and has expanded from its original markets in aerospace, medical, automotive and energy into defence. Its international footprint is growing, with customers across Spain, France, Germany and the United States, reflecting demand for automated finishing capability well beyond the UK.
For a company that began as a concept supported by Dstl and UKDSA funding, the commercial trajectory illustrates the value of the government’s defence innovation investment model. Dstl technical expertise provided the domain-specific guidance needed to make the technology militarily relevant, while UKDSA funding gave Rivelin the runway to develop a concept into a commercial product with real customers.
What This Means for the Supply Chain
For UK defence manufacturers, system integrators and platform support organisations, Rivelin’s microfactory technology represents a practical tool for addressing finishing bottlenecks in their own production and maintenance operations. As additive manufacturing becomes more deeply embedded in defence parts production, the ability to automate the finishing stage will move from a competitive advantage to an operational necessity.
For the broader defence innovation ecosystem, the Rivelin story is a reminder of the commercial potential that Dstl and UKDSA-backed programmes can unlock, particularly for SMEs with novel technology looking to establish credibility in the defence market before expanding internationally.
Image: Rivelin Robotics’ industrial robots finish parts faster and more accurately than manual methods.
