Verifiable Quality

Frank is specialist in Unika's third measuring machine, a new surface scanner from Zeiss.

Colour mapping is used to compare the scanned subject with a 3D drawing model or an approved Master-subject. The differences between these subjects can be expressed in colour differences on the computer screen. With this method, we can get a very clear picture of which tolerances are met and where we need to have the customer in dialogue about possible adjustments.

If there is not already a drawing on the subject, we can use the data from our new Zeiss surface scanner to reverse engineering.

This means that our designer can make both a drawing and a 3D model of the item based on the measured data. In this way, technical files can be created based on any subject, even if it is just a sawn tree model or made of a model wax. We can also help our customers to document older topics where, for example, drawing material is not available.

All measurements are carried out in a measuring room where the temperature is always stable at 20 degrees, to take both the heat expansion and cold draft coverage of the subjects into account.

Both our own drawings and many of our customers' files are targeted at Geometrical Product Specifications (GPS) objectives. GPS is an international standard, which has been under development since 1992 and now consists a lot of standards for drawings and objectives.

The GPS goal also ensures that there is always the same approach to the subject and therefore a consistent result, not depending on where the subject is measured. From the subject function, the constructor specifies with GPS targeting how the topic should be corrected during the manufacturing process and again later at the control survey. The GPS goal provides the basis for a detailed measurement report, which for all the specified goals and the subject function accurately shows whether the tolerances are met and the subject can be approved.

The new surface scanner is a really good addition to our 2 Taktile measuring machines, and with the help of the colour mapping feature, we quickly and accurately get a visual overview of the subject.

Frank has worked as a toolmaker in our tooling department since 1989. He now has the department's measuring machines and has been responsible for measurement, control and calibration since Unika bought their first Zeiss machine in 2010.