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Industry Leading Tolerance Analysis Software

3DCS Variation Analyst is the world's most used tolerance analysis software. Fully integrated into your CAD platform, 3DCS empowers engineers to get real insight into their designs. 

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3DCS Variation Analyst -

Integrated 3D Tolerance Stack Up Software

3DCS Variation Analyst is a CAD integrated simulation software used by leading manufacturers in the aerospaceautomotivemedical deviceelectronics, and machinery industries to create Digital Twins in order to simulate assembly processes and tolerance stacks using 3D models.

As the most advanced tolerance analysis tool in the market, 3DCS Variation Analyst offers users the ability to do more than just 3D stack-ups by analyzing the relationship between your parts and accounting for a multitude of sources of variation. This gives you the most accurate results to make important decisions about your design and manufacturing processes. 



Incorporating Both Part and Process Variation

3DCS Variation Analyst simulates both part and process variation. This enables engineers to analyze their manufacturing process and how it affects both the assembly and final product functionality. 


Used Daily by Major Manufacturers Across Multiple Industries

For more than two decades, DCS has been a trusted partner in enhancing quality management across a wide range of industries, including automotive, aerospace, medical devices, electronics, and industrial machinery. DCS solutions are used daily by companies like AirbusEmbraer, BMW, General Motors, FCA, LG, Nissan, Phillips Medical, Samsung, and Volkswagen.

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Mechanical Variation Modeler
3DCS Specialized for Mechanical Assemblies
Red Truck assembly-pip
3DCS Variation Analyst
Advanced Tolerance Analysis Simulation

Why use Tolerance Analysis software?

Validate GD&T -

Test, optimize and improve your GD&T (Geometric Dimensioning and Tolerancing). 

Determine Gap and Flush - 

Determine optimum Gap and Flush conditions based on your manufacturing processes. 

Optimize Processes -

Simulate your manufacturing and assembly processes to determine optimum methods and order. 

Reduce Variation Risk -

Reduce overall variation about compensating for it in design. 

Control Rework and Scrap -

Through robust design and GD&T, reduce the need for scrap and rework. 

Resolve Manufacturing Issues -

Use measurement data from the plant to resolve production issues with the CAD model. 

Get Started with Tolerance Analysis

CAD Integrated Tolerance Stack Up Simulation Software

3DCS Variation Analyst CAA V5 Based
3DCS Variation Analyst for 3DEXPERIENCE
3DCS Variation Analyst for SOLIDWORKS
2017-01-06 14_16_40-PHONE_COMPLETE (Active) - PTC Creo Parametric
3DCS Variation Analyst for CREO
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Siemens NX
3DCS Variation Analyst for NX
Stand Alone Multi-CAD
3DCS Variation Analyst Multi-CAD