Unlocking Efficiency with Model-Based Definition at Vestas In 2017, Vestas embarked on a transformative journey to replace traditional 2D drawings with Model- Based Definition (MBD). This initiative aimed to enhance clarity and efficiency for engineers, suppliers, and our value chain. After three years of thorough investigation and collaboration with consultant partners, we began deploying MBD technology in 2021 using PTC tools, our main design tool partner. Introduction to Model-Based Definition (MBD) Model-Based Definition is a method of defining products using annotated 3D models and associated data elements, eliminating the need for traditional 2D drawings. According to ASME Y14.47, MBD includes part geometry, model views, annotations (PMI), part attributes, assembly structure, joining technology, painting and coating, related standards, technical specifications, and manufacturing and assembly instructions. Challenges and Solutions During the initial phase, we identified several challenges regarding the use of MBD by our tower suppliers. These included low variety in structure and geometry from order to order, rugged operating conditions at the shop floor, and existing communication and sourcing procedures relying on 2D drawings. To address these challenges, we focused on optimizing Creo methods for MBD, ensuring convergence by guiding and moderating communication between MBD creators and users, including suppliers. Tools and Technologies Our suppliers use various tools and technologies, including CAD systems like Creo Parametric, CATIA V5, Solidworks, and AutoCAD. However, many suppliers still rely on manual processes and spreadsheets for 1 CAM and CAQ/FAI software. To facilitate the transition to MBD, we provided acceptable formats such as Creo, PVZ, and STEP AP242 for viewing and single file per order. Feedback and Improvements Feedback from suppliers highlighted the need for zoomable textual information in 3D model views and unambiguous specifications. We addressed these issues by making textual notes zoomable in Creo and ensuring clear and consistent specifications. Roadmap and Phased Deployment Our roadmap towards MBD involves transitioning from drawing-centric to model-centric documentation, virtual simulation, and paperless engineering. We use MBD capability maturity levels as the basis for our roadmap and framework, progressing from Level 0 (drawing-centric) to Level 6 (model-based enterprise). Action Plan for Towers and Castings Our action plan for towers and castings includes building a reusable MBD framework, enabling towers for MBD, optimizing Creo methods, and ensuring GD&T expertise with design and downstream processes. We also focus on enabling digital threads for textual specifications, approval and release processes for MBD, and implementation of derivatives and TDP management in PDM. Project Governance Structure To ensure successful implementation, we have established a robust project governance structure with strategic, operational, and delivery governance. This includes regular reviews, risk assessment and mitigation, and addressing escalations. Education and Training To support the transition, we have developed comprehensive training programs, including MBD basic training videos available in the P&C portal and relevant training materials, guidelines, and examples on the MBD SharePoint. These resources ensure that all team members are proficient in MBD principles and tools. Combined State Architecture Combined states are used to manage multiple model display states, helping users navigate through all required product definition data. This includes logical groups for properties, notes, dimensions, welding details, surface treatments, and more. Each combination state has a unique orientation view, aiding in the clear understanding of specific feature annotations. Technical Data Package (TDP) The TDP is a set of electronic files that describe a product or item, used by downstream teams in the supply chain. It includes: • STEP File (.STP): Machine-readable file for CNC and CMM programming. • Product View Structure File (.PVZ): Contains combination state views, sections, PMIs, and notes. • PDF File (.PDF): Automatically created via RPA in SAP, containing multiple pages based on combination state views. • BOM Structure (.XLS): Represents the Bill of Materials. Conclusion Join us to explore our phased deployment strategy, driven by business priorities and supplier readiness, and discover the transformative impact of MBD on our operations. By integrating MIL-STD-31000, ISO 16792, and ASME Y14.41 & Y14.47 standards, we aim to boost efficiency, effectiveness, and overall profitability. Our journey towards MBD is a testament to Vestas’ commitment to innovation and excellence in engineering and manufacturing.