A spacer foil is used to set the scanning gap to 0.5 ☐.05 mm. The scanning head is mounted in the locked toolholding element (for example, the spindle of a machining center) and is also approximately aligned.
For setup, the mounting base is fixed onto the workpiece-holding element (such as the table of a machining center) and aligned.
During measurement, the scanning head moves over the grid plate without making mechanical contact. The KGM consists of a grid plate with a waffle-type graduation, which is embedded in a mounting base, and a scanning head.
