Maximize the return on your MBD / MBE investment​


There is a lot of discussion in industry about Model-Based, Industry 4.0 and Digital Thread.  Many companies are starting down the path toward a Model-Based Enterprise, but that path can be challenging.  There are many facets to becoming truly Model-Based, but as the name implies, the key is the models themselves and their connections to various parameters.  It is important that all requirements be tied directly to this comprehensive set of models to ensure traceability and usability.  One set of requirements that is critical to the quality of any product is its dimensional requirements that are used to control mechanical variation.  Overlooking this important aspect can quickly derail the value proposition of your Model-Based Enterprise.  Sigmetrix, with its knowledge of managing mechanical variation, can help maximize the return on your MBD / MBE investment in the following ways: 

  • Ensure the integrity of your MBD to maximize usability​ 
  • Guide the creation of optimal dimensioning schemes, including GD&T​ 
  • Promote consistent knowledge between contributors and consumers​ 
  • Assess and improve the maturity of your​ organization’s Mechanical ​Variation Management​ 


Ensure the integrity and usability of the dimensional controls within MBD 


Dimensional controls within a model are critical to the management of variation.  Without them manufacturing has no idea how critical surfaces relate or how precise a particular machining operation needs to be to achieve the desired quality.  In addition, inspection cannot tell if something is acceptable or not.  Therefore, it is important that dimensional controls be part of the Model-Based Definition (MBD).  A dimensional control system is needed that is both unambiguous and relates directly to the features of the model.  GD&T or GPS is a system of dimensional control that has been developed to address these concerns.  There are globally accepted standards that govern the definition of these controls and how they should be associated with the CAD model (i.e., ASME Y14.5, ASME Y14.41, ISO 1101, etc.).  Sigmetrix solutions work within the CAD system to help ensure that the GD&T within the model are both syntactically and semantically correct according to the standards.  This compliance with standards helps ensure that these definitions can be directly read by manufacturing, inspection, and other downstream consumers.  


Guide the creation of optimal dimensioning scheme including GD&T 


Although many companies recognize the usefulness of using GD&T to better manage variation, it can still be difficult to apply it in the most beneficial way.  What is the best way to control my critical product features?  How precisely do I need to control these features?  Sigmetrix solutions can guide your team through the creation of an optimal dimensioning schemes that correctly controls the critical product features.  Our tolerance analysis solutions can then quickly and easily analyze the tolerance stack-up to compare against the desired quality. Engineers can quickly make changes and simulate the outcome of various dimensioning schemes and tolerance values. They can instantly visualize key information such as contributions, sensitivities, and the relationships between feature and assembly tolerances. This information allows decisions to be made early in the development process and help ensure that the released physical product will achieve desired quality requirements. 


Promote consistent knowledge between contributors and consumers 


Promoting consistent knowledge between contributors and consumers of mechanical variation information is another integral piece of the puzzle. Without consistent knowledge, mistakes can be made and time lost because the model is misunderstood.  Sigmetrix solutions provide a consistent approach to the training and application of mechanical variation controls.  Sigmetrix has a comprehensive set of instructor-led and computer-based training offerings to facilitate training.  These training courses deal not only with the subject matter but also discuss the practical application of the concepts within the appropriate tools.  Sigmetrix software solutions also reinforce this training by providing context specific in-tool guidance throughout the process. 


Assess and improve the maturity of your​ organization’s Mechanical ​Variation Management


How well does your organization understand and manage mechanical variation?  Mechanical variation is a reality of the manufacturing process and designs that pass all other tests during model simulations will still fail to meet the desired quality because this key aspect of the design was overlooked. Proper mechanical variation management can help avoid failures and shorten the time it takes to produce a functional product. 

Sigmetrix can work with your company to assess its current capabilities and make recommendations to help you improve the management of machinal variation within your product development process.  How well are your dimensional requirements mapped to your system requirements?  Are those dimensional controls properly constructed and tied into the MBD model?  Are manufacturing and inspection able to sufficiently take advantage of the mechanical variation controls within the model.  Is there an appropriate feedback loop for knowledge gained in manufacturing and inspection to be brought back to design?  Sigmetrix is the preferred partner for helping companies build better products through mechanical variation management.