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Tech Tip: Using Datum Reference Frames

Tech Tip – Using Datum Reference Frames

Within the Report Manager  the Verisurf Dynamic Datum Reference Frame (DRF) tool is a powerful function that allows you to create Datum Reference Frame alignments using Feature Data found in the Report Manager Data List.

By assigning Datum Labels (A, B, C etc.) to the measured feature that represents the Datum you create a virtual Datum Reference Frame Alignment where A is Primary, B is Secondary and C is Tertiary. After assigning the Datum Labels the coordinate values of the features are relative to the Datum Reference Frame Controls (Primary, Secondary, Tertiary) for each Feature in the Data List.

  1. Assign Datum Labels – in the example shown below ‘Top’ is assigned (using Datum Label control) as Datum A (Primary), Side4 as Datum B (Secondary) and Side1 as Datum C (Tertiary), ‘Boss” is assigned as auxillary Datum D:
  1. In this example the four tool holes in the corner were measured as TH1-TH4 and must be reported to Datums A/B/C so we simply assign the DRF to the Features, by selecting all the Features in the Data List and using the drop down controls for Primary, Secondary and Tertiary:
3D Metrology Software, Training and CMMs
  1. In this example the eight Bolt Holes and Large Center Hole are reported using Datums A, D and B:
3D Metrology Software, Training and CMMs
  1. When a Report is generated, the results are based on the assigned DRF.

Verisurf Software, Inc.
Verisurf Software, Inc. is an advanced three-dimensional measurement solutions company committed to delivering advanced computer-aided inspection and reverse engineering solutions. Verisurf software helps manufacturers of all sizes and industries produce higher quality products in less time and at a lower cost with automated, Model-Based Inspection processes. For more information, visit the Verisurf website at https://verisurf.com.