The example of an aspheric lens illustrates the effects of 3D-ToolComp: the upper image shows the form errors after the initial test cut, as determined by probing cycle 444. The lower image shows the machined lens after compensation of the radius deviations with 3D-ToolComp.
The procedure is as follows:
1. Use the tool to perform a milling operation on a test workpiece.
2. Then measure the resulting contour using a touch probe in combination with Cycle 444 PROBING IN 3-D.
The discrepancies between the milled contour and the desired contour are used to derive the tool radius deviations, which can be entered directly into a compensation table.
Tip: Before probing the workpiece surface, use 3D-ToolComp to perform a 3-D calibration of the touch probe.