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| Raw Data Points |
Fitted Spline |
Establishing the Parameters for a Line Scan
Step 1 – Probe Direction
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| Step 1 - Select Probe Direction |
In the Build/Run Group, open the choices of probe direction and choose
one. This becomes the direction for all data points within the scan.
Step 2 – Setting the Endpoints
Set the start and stop endpoints. To do this, press <Teach>. The
system will prompt you to Capture 2 endpoints. Under manual or joystick
control, contact the part to establish these limits.
Step 3 – Establishing the distance between points
Enter the Grid Distance in the Linear Scan Parameters Group. For example,
if you choose +X as your probe direction, the Grid Distance controls the Y
direction distance between points.
Step 4 – Building the motion path
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| Line Scan Setup Tool |
Build the initial motion map through the use of <Build Path>. The
Line Scan Tool will report the total number of points that will be captured
based on the current settings.
Adjustments can now be made to the motion path. These adjustments include
changing the Grid Distance and the building of exclusion zones.
To change the point density, enter a new value in Grid Distance and press
<Build Path> again. This will discard the existing motion path and compute a
new one based on the changed Grid Distance value. NOTE: Making a change to
the Grid Distance and then computing a new motion path will delete any
existing exclusion zones.
Step 5 – Capturing the data cloud
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| Execute Line Scan |
The system has sufficient data that you can now capture the data points.
Press <Execute> and you will be prompted to proceed back to endpoint
#1 and press the <IP> button the on Joystick controller when ready to
proceed.
The system will start capturing data points and adjust for surface
deviation with every hit. For example, if you are capturing data in the –X
direction, the system will calculate the change in X between the current and
previous data points. That deviation will be added to the next data point to
allow a contour-walking path.
