Factors of Influence in the Results of 3D Measurements: Software Associated with Coordinate Measuring Machines

In three-dimensional metrology, the means of 3D measurements have been widely multiplied in recent years, in metrology laboratories, in production workshops, with the evolution of technology in general, the software associated with these machines are multiplied and allow to obtain the results of measurements with different methods. In this article we carry virtual measurements on a part, using two different software associated with coordinate measuring machines, but without the CMM. To do this we use the same measurement procedure in these two software, the least-squares method is applied for the evaluation of the geometrical specifications of the part. The results obtained by the two programs are compared with the nominal values. The article highlights the hypothesis that the software contributes in the 3D measurement results; this approach allows the CMM measurement controller to know what measurement her software, before doing physical measurements on the CMM.