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The CAD division of Spanish IT company Ibermatica, C4 Advanced Engineering Services (C4 AES), distributes TASys Tolerance Analysis System developed in collaboration with the not for profit foundation Labein Technological Research Centre.
Available as an add-in for Solid Edge, SolidWorks and shortly Inventor, TASys analyses the effect of individual component tolerances in assemblies.
Of the three versions, entry level Pre_TASys enables controlling dimensions to be identified.
The full TASys product enables the tolerancing scheme to be analysed and the influence of each tolerance to be assessed.
The top of the range product INTOL optimises tolerances by automatically re-running the analyses.
Modelling and dimensioning is carried out in the host modeller as normal, although particular attention to best practice in the dimensioning scheme will aid the downstream analysis.
Once the assembly is complete, the property to be controlled such as a clearance between cylindrical faces, an angle or a distance between two parts is defined as a Response Function.
Since modellers do not define negative dimensions, situations where an interference may result in a negative clearance can be defined as the difference between two dimensions.
Although multiple response functions can be set-up, they cannot be individually selected for subsequently running a specific analysis.
The TASys search function is then able to identify all dimensions in the components and assembly that influence the response function, a useful checking function in itself.