Can Model-Based Measurements Help Improve CMM Programming Processes?

In today’s rapidly changing manufacturing landscape, the demand for efficiency and precision in measurement processes has led to the creation and use of model-based measurements. This shift has been driven by things like the increasing emphasis on quality control, the diversification of the parts and components being measured, the complexity of global supply chains, and shortened product lifecycles. As the industry moves from traditional 2D drawings to more advanced 3D annotated models, an important question arises: “Can model-based measurements truly revolutionize CMM (Coordinate Measuring Machine) programming processes and bring about substantial improvements?”

The Rise of Model-Based Measurements

Model-based measurements involve a novel approach that leverages 3D CAD (Computer-Aided Design) models and Product Manufacturing Information (PMI) to automate the generation of measurement programs. This transformation works by offering the following: 

  • Simplifying programming complexities
  • Reducing human error
  • Significantly cutting down programming time

Unlike the conventional method – where manual programming could consume hours – the creation of automatic measurement program generation software has reduced these tasks down to mere minutes.

Industry Catalysts for Change

The aerospace and defense sectors have emerged as pioneers in adopting model-based measurements. Industry giants like Boeing, Lockheed, Raytheon, Ford, and Deere – alongside branches of the U.S. military – advocated for the integration of automatic measurement program generation software as part of their digital product definition strategies. This has prompted some original equipment manufacturers in the Department of Defense supply chain to embrace model-based definitions (MBDs). This further validates the potential of this approach.

Understanding Model-Based Definition (MBD)

Model-based definition involves employing 3D annotated models and associated data elements to define a product; clearly, a far cry from traditional drawings. While MBDs have been employed in product definition, they’re now being used for quality assurance purposes. This presents a more efficient way to compare CMM results with CAD models. This is particularly the case in industries like commercial aerospace, defense, and even the medical device market.

Benefits Involving Efficiency and Precision

The transition to MBD provides several tangible benefits to manufacturers seeking to simplify their measurement processes:

  • Easier Processes: MBD eliminates the need for a convoluted 3D-to-2D-to-3D workflow. It simplifies the process to direct 3D CAD-to-3D CNC CMM programming. This leads to major reductions in programming time.
  • Reduced Manufacturing Costs: The investment in automatic measurement program generation software is offset by the increase in productivity. The time savings can be as high as 95% (compared to traditional drawing-based methods).
  • Improved Traceability: The direct read of metadata, features, and characteristics from the CAD model lessens the risk of misinterpretation (which could occur if relying on drawings).
  • Optimization and Flexibility: MBD provides quick changes to plan parameters and CMM configurations. This facilitates adaptability to changing needs.
  • Workflow Automation: Some projects have already achieved full automation. Machines communicate flawlessly, while human oversight assures optimal performance.
  • Improved Productivity: Automation reduces the burden of low-level programming tasks on CMM planners. This allows them to focus on higher-value activities.

Mechanics of Automatic Measurement Program Generation Software

The core of automatic measurement program generation software is in its ability to sidestep traditional drawing-based methods. It directly generates and executes a model-based workflow. The process involves importing an MBD, applying rules that align with the configured CMM, and automatically generating a part program. Optimizations refine the program to minimize probe changes and path length. This helps to guarantee efficiency and precision.

Selecting the Right Metrology Software

When thinking about metrology software to support model-based quality control, several key considerations deserve your attention:

  • Cost Efficiency: Despite the initial investment, the gains in programming productivity and just-in-time program generation can offset the costs.
  • CAD Compatibility: Software should easily read, organize, and work with CAD models.
  • Global Collaboration: The ability to work across various locations globally and share measurement plans and configurations is important.
  • Training and Support: Look for software that provides effective training with a shorter learning curve for model-based measurements.
  • Customizable Reporting: The software should allow customization to generate complete reports or focus on specific features.
  • Versatility with CMM Systems: Compatibility with coordinate measurement systems provides flexibility and adaptability.

Embracing the Future of Measurement Programming

The integration of model-based measurements holds the potential to revolutionize CMM programming processes. This approach not only eases workflows, reduces costs, and improves traceability but also opens the door to a new era of automation and efficiency. As industries recognize these advantages, the adoption of model-based measurements is poised to become a cornerstone of modern manufacturing.

Discover Willrich Precision Instruments – A Tailored Precision Solution

Our Willrich Precision Instruments range encompasses personalized gaging answers, spanning functional fit gauges, meticulous design and construction, automated metrology cells, and seamless shop floor metrology fusion. Our adeptness extends from fundamental measurement requirements to intricate challenges. Trust us with your needs – whether conventional or intricate – and allow our dedicated team to explore and evaluate various product options, guaranteeing optimal resolutions for every scenario. Reach out to Willrich Precision Instruments now at 866-945-5742 or drop us an email at [email protected].

by George Chitos