At the defence industry’s biggest conference, DSEI UK, taking place in London this week (September 9 - 12, 2025), additive manufacturing experts have claimed that the sector’s unfamiliarity with modern 3D printing applications is blocking access to production-ready capabilities.
Craig Pyser, chairman of AMUK – the additive manufacturing industry’s trade association – said the Ministry of Defence’s new Advanced Manufacturing Strategy highlights additive manufacturing as 'critical' for strengthening supply chain resilience.
“The MoD’s own strategy references a Defence Innovation Unit report estimating that if 15 per cent of the defence inventory were additively manufactured, the net financial benefit to the MOD would be £110 million over the next 15 years," he said. “There are also ongoing annual benefits of £35.5 million but those figures will only materialise if we bridge a critical knowledge gap between our industry and procurement teams commissioning large scale defence contracts.
“The technology exists and, importantly, the companies exist. We have UK firms delivering production-scale additive manufacturing right now, but there’s a fundamental knowledge gap preventing the sector from maximising these capabilities. Education is vital and we all have a role to play in shaping the conversation.”
The warning comes as the UK Government committed to increasing defence spending by £2.9 billion in the 2024 Autumn Budget, with plans to reach 2.5 per cent of GDP by 2027. This investment is driving demand for more resilient supply chains that can adapt quickly to changing requirements and reduce dependence on vulnerable international suppliers.
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Pyser is also chief executive of Portsmouth-based additive manufacturer AMufacture, which he co-founded with former naval architect and Olympic sailor Will Howden.
The company has invested significantly in advanced HP Multi Jet Fusion printer technology and automation, delivering projects for clients across the aerospace, automotive, medical and marine sectors. Based in Portsmouth’s industrial cluster, it is near major defence contractors including BAE Systems, Airbus and Lockheed Martin, representing the type of UK capability the MOD strategy seeks to leverage.
“The challenge isn’t the technology, it’s that decision-makers are still thinking about 3D printing as it was ten years ago, not as the production manufacturing process it has become. The MoD strategy acknowledges that obsolescence was identified as the ‘number one’ supply issue," Pyser added. "With the MoD managing an inventory that currently exceeds 1.3 million items, the opportunity for additive manufacturing to provide alternative sources of supply for obsolescent items is substantial."
UAV and drone components represent a particularly compelling application for additive manufacturing, where rapid iteration and on-demand production can provide tactical advantages. The US military has already demonstrated 3D-printed drone systems built and deployed in under 24 hours, highlighting the operational benefits of the technology.
Pyser argues that the defence sector needs urgent education about modern additive manufacturing capabilities, particularly as the MoD shifts from ‘just-in-time’ to ‘just-in-case’ supply chain models that require more flexible manufacturing approaches.
“There is a real wealth of 3D printing talent in the UK. We need to shout louder about what we can achieve when it comes to modern-day production and the wide array of cost, environmental and performance benefits additive manufacturing can deliver," he concluded.
“If defence switches on to the fact, it can push for those £110m savings whilst also driving massive economic impact to some of the country’s fastest growing and exciting manufacturers.”
