End-Scan Using a Ball Probe

How to perform end-scans with a ball probe. Back to VTube-LASER See End-Scan Technique Research

Why the End-Scan technique is important

This end-scan method is useful for situations where the only option is a ball probe - or where the Laser cannot reach effectively - but a ball probe can. Using a ball probe is very precise as long as the tube is properly held with a work holder. The main drawback with this method is that the tube must be securely mounted without deforming the shape. It must also be touched - thereby potentially moving the tube - which will invalidate most measurements.)

Measure Setup - For End Wall

Set Part Setup - Set the A-End Diameter to the diameter where the measurement will be taken. Set Measure Setup - LASER Tab: The LASER defaults to OFF for at least END-SCANS. Set Measure Setup - TACTILE Tab: Uncheck the Continuous Scan on Tactile End-Scans. Set Measure Setup - TACTILE Tab: Set the Offset for each end to "TOWARD BEND" if the measurement is on the end wall.

Measure Setup - For Ends That Move Into A Surface

Follow the instructions above except change the End A Offset to AWAY like this: Set Measure Setup - TACTILE Tab: Set the Offset "AWAY" if the tube end is moving into a surface.

How To Use This End-Scan End-Surface Technique

Align the probe the end of the tube as shown in the diagram below - take two points per quadrant. Press and release the green button for each measure. It is not necessary to take all four quadrants. However, more are better if possible. Press the RED button when you are finished collecting data.

Other Pages

• See also End-Scan Using the End Wall
• See also End-Scan Using End Targets
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