DIMENSIONAL TOLERANCE APPROXIMATION FOR REVERSE ENGINEERING APPLICATIONS
Tolerance accommodation is normally a re-engineering process rather than the Reverse Engineering (RE) of a component. This can jeopardise the exactness of the re-designed data or increase the RE cost due to the high level of design skill required. In this paper a method for tolerance approximation in RE is introduced. The surface characteristics, including texture and roughness, are used to estimate the original tolerance of the component. The measured dimensions on the features are used as nominal. Although this may not be factual, however this is shown to be a reliable starting point for tolerancing. Further investigation of this method should lead to a more precise result, as this method is only an approximation. Experimental results of the method on a mounting bracket of a car break assembly are presented.