Sigmetrix EZtol v3.2.1 full patch notes

MCKINNEY, Texas – May 6th, 2026 – Sigmetrix, experts in mechanical variation management , announced their release of EZtol v3.2.1. This new version offers several enhancements to the standalone version of EZtol as well as EZtol for SolidWorks.

EZtol streamlines 1D tolerance stack-up analysis, making it easy for engineers to quickly calculate, visualize, and validate tolerance impacts without relying on error-prone spreadsheets. The result is faster design cycles, more accurate assemblies, and lower manufacturing risk. 

EZtol v3.2.1

Added ability to clone a stackup

• EZtol now allows you to create a copy of an existing stackup, and the new copy will remain independent of the original stackup. This can be useful if you want to evaluate the same stackup measurement but with different assembly shift settings (Maximize vs. Minimize), different stackup objectives (Tolerance type or value), or different analysis type (Worst Case vs. RSS).

   

Added ability to redefine mating features of an existing stackup

• EZtol now allows you to redefine mating features in an existing stackup. This can be helpful if you inadvertently selected the wrong feature when initially defining the stackup, or if you want to evaluate a different path of mating features in the part loop of the stackup.

Switch license manager from Reprise to Flexera

• EZtol has switched license managers from Reprise to Flexera. This change aligns EZtol with other Sigmetrix products in using Flexera and will simplify license management by consolidating all Sigmetrix solutions on the same license manager.
  
  

EZtol for SOLIDWORKS v3.2.1, all of the above plus:

Use of assembly mates to automatically define the stackup dimension sequence

• EZtol will interrogate existing mates in the assembly. If at least one path between the start and end features of the stackup can be found, EZtol can use that path to automatically define the stackup dimension sequence. This can save time and streamline the process of generating a new stackup.

Sigmetrix’s comprehensive, integrated portfolio includes other products and services including: 

• CETOL 6σ, a 3D tolerance analysis solution that works directly with NX, SOLIDWORKS, PTC Creo and CATIA V5-6 models. 
• EZtol, a 1D tolerance analysis software that works directly with NX, SOLIDWORKS, and CATIA V5-6 models. The same technology is used in PTC Creo’s EZ Tolerance Analysis (EZTA) tool and Autodesk Inventor’s Tolerance Analysis tool. 
• GD&T Advisor, an interactive tool that provides expert guidance on the correct application of GD&T within the PTC Creo and Autodesk Inventor environments. 
• Training  provided through more than a dozen instructor-led and computer-based courses covering basic to advanced GD&T/GPS, MBE, tolerance analysis, and instructional courses for software developed by Sigmetrix. 
• Consultation and implementation  services team with years of experience in tolerance analysis and GD&T definition offers a variety of consulting services to augment your team, speed your project along and run analyses for your assemblies.
   

About Sigmetrix 
Sigmetrix has been helping companies produce better solutions for over 25 years through a combination of software solutions, training, and consulting services that focus on managing the impact of mechanical variation. For more information, visit their website at https://www.sigmetrix.com.