WAAM3D :: Wire Arc Additive Manufacturing (WAAM), A Large-Format Metal 3D Printing Technology Built Around Industrial Robots

WAAM3D is a UK-based company that specialises in Wire Arc Additive Manufacturing (WAAM), a large-format metal 3D printing technology built around industrial robots. Emerging from decades of research at Cranfield University that began in 1994, the company was formally incorporated in 2018 and operates from its headquarters in Milton Keynes. It delivers complete turnkey solutions that combine proprietary robotic hardware, end-to-end software, certified wire materials, and supporting services.

At the heart of WAAM3D’s offering are robot-based systems designed for building near-net-shape metal components at industrial scale. The flagship RoboWAAM® is a state-of-the-art, robot-based turnkey platform engineered in the UK for large-format deposition. It uses 6-axis or 8-axis robotic arms to deposit metal layer by layer using wire-fed arc processes such as MIG, MAG, or Cold Metal Transfer (CMT). The system features a spacious build envelope (up to 2 m × 2 m × 2 m) and supports heavy payloads, making it suitable for components weighing hundreds of kilograms in materials including titanium, steel, aluminium, nickel alloys, and bronze.

A newer, faster iteration is the RoboWAAM® Plus (also referred to as XP), which incorporates the patented GMAX multi-wire process. This enables deposition rates up to 15 kg/h and significantly higher productivity while maintaining precision. Key hardware innovations include:

• ShapeTech™ — interferometric sensors that deliver real-time 3D geometric monitoring of the deposited structure without lasers or probes.
• Extensive sensor arrays (over 40 sensors) for voltage, current, temperature, and process variables.
• Integrated fume extraction, automatic chamber purging, quick wire changeover, and local shielding.

WAAM3D also offers the more accessible MINIWAAM®, a compact turnkey system that shares the same core intelligence and monitoring capabilities as the larger robots. It uses a 3-axis overhead CNC platform plus a rotary table and serves research, prototyping, and smaller production needs with an 800 mm × 800 mm × 600 mm build volume.

Complementing the hardware is a complete software suite that forms the “eyes and brains” of the process. WAAMPlanner generates optimised toolpaths and calculates process parameters automatically. WAAMSim provides simulation and virtual training in a gaming-style environment for collision checking and program validation. WAAMCtrl functions as the operating system, delivering real-time monitoring, digital twin mapping, full process data logging, and auditable quality records.

Additional offerings include upgrade technology packs for existing robots, high-quality WAAM-specific wire feedstock, and full services such as business case assessments, first-part qualification, operator training, and project management.

WAAM3D positions WAAM as a more cost-effective, lower-waste, and faster alternative to traditional forging or casting for large parts. Benefits include reduced material usage, simplified supply chains, design consolidation (merging multiple components into one), and the ability to achieve forged-like mechanical properties through in-process cold working. Target sectors range from aerospace and defence to energy, marine, cladding and repair, and industrial R&D.