Sigmetrix Improves and Enhances Its Portfolio

Sigmetrix to release updates for three of their precise, easy-to-use mechanical variation and tolerance analysis software lines in April.

MCKINNEY, Texas – April 12, 2018 – Sigmetrix, global experts in GD&T and mechanical variation, will be releasing updated versions of EZtol, CETOL 6σ for NX, and CETOL 6σ for CATIA in April. The new versions will offer updated and enhanced ability to determine the impact of part and assembly variation on the fit and performance of products.

EZtol v1.2 is a significant upgrade to the capabilities of Sigmetrix’s initial release of this 1D tolerance analysis tool less than a year ago. “We’re focused on providing a tolerance analysis solution that’s as easy to use as possible, so we’ve listened to user feedback and focused on a range of enhancements that not only simplify the workflows but also expand the types of problems that can be evaluated with EZtol”, said Stephen Werst, Senior Product Strategist at Sigmetrix. “For example, users often had difficulty selecting the interfacing features between parts deep within complex assemblies, so we’ve implemented an innovative approach that makes the selection of the desired objects extremely simple.” Other enhancements in this release include:

  • Support of assemblies containing parts that use different units
  • Ability to select CAD reference point features as well as vertices when including more complex surfaces, such as with plastic parts, in the stackup definition
  • User-selectable treatment of how to include clearances between parts in the tolerance stack-up
  • Automatic correction for any mispositioned parts in the assembly model
  • User-definable distances between parts to incorporate items that may not be modeled such as paint or other coating processes
  • The ability to set different Cp assumptions for individual parts and even specific dimensions of features when performing statistical analyses

The new release also moves all the tools to the ribbon and provides additional help on the tools used to interact with the model in the EZtol environment.

Interested users, including those who may have tested earlier versions of EZtol, may download a 7-day free trial from

CETOL 6σ 10.1 has some nice additions to the already robust 3-D tolerance analysis software that has enabled product development teams to easily and fully understand the often-complex impact of dimensional and assembly variation on their designs for years. In addition to the ability to open NX files, CETOL 6σ 10.1 will have the capability to open CATIA files. This release also offers the ability to show only the active object in your CAD display – all parts outside of the active object are not shown. This and other UI enhancements allows you to focus on the CAD geometry of interest improving the user experience. CETOL 6σ v10.1 also adds support for some non-standard CAD model structures, adds the ability to select a vertex of the CAD model geometry as a feature reference, improves geometry highlighting and view manipulation performance for large models, and offers improved report stylesheets.

CETOL 6σ v8.4.3 is the latest release of our fully integrated CATIA V5-6 solution adding support for the latest CATIA V5-6 releases, CATIA V5-6 for R2017 (R27) and R2018 (R28).  As a Gold Software Partner with Dassault Systemes, Sigmetrix is committed to providing our CATIA users the tools they need to continue to perform full 3D tolerance analysis on their CATIA designs. Using CETOL 6σ during the design process allows companies to reduce costs of manufacturing, improve product robustness, and provide product assemblies which meet brand expectations.

“We are thrilled to be providing these releases at this time,” said James Stoddard, Executive Vice President at Sigmetrix. “The company has continued to grow over the last few years, and as a result we have been able to invest in the resources needed to provide the enhancements our customers have requested for our current products as well as develop entirely new products like EZtol.”

Learn more about these products at and

About Sigmetrix
Sigmetrix is a global provider of comprehensive, easy-to-use software solutions that help users achieve robust designs through tolerance analysis and the correct application of GD&T. With over 20 years of research and development, Sigmetrix products eliminate the error between as-designed assemblies and as-produced products. For more information, visit their website at