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Measure the tool length offset of the tools you will be using for machining the part. All the tool offsets needed for every operation on the part should be measured before mounting the stock. It is sometimes possible to measure a tool offset with stock mounted on the table, but it may be much more difficult. For more information see the “Tool Length Offset” tutorial.
When you are finished measuring tool length offsets, load the edge finding tool holder into the spindle and install the edge finding tool. You do not need to measure the tool length offset of the edge finder.
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Mount the stock in the Pocket NC. See the “Workholding” tutorial for more information on how to use the Pocket NC vise. Locate the stock close to the position in which it is located in the CAD/CAM model. Tighten the vise to secure the stock. Pay particular attention to making sure that the stock is seated securely in the Y direction so that the stock will not be able to pivot/rock when it is machined.
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Type “G0 G90 M5” into the MDI window to stop the spindle.
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The The offset is the X distance displayed in DRO minus half of the edge finder tip diameter. The calculation for the X offset is: (absolute value of measured X distance) - (½ edge finder tip diameter) = X offset.
In this case the X offset is 1.5398 - 0.200/2 = 1.4398 inches.
Note: If you are using Pocket NC’s RWO feature, you can simply apply the above offset value to the work offsets table in the Pocket NC user interface and move on to finding the offset for the next axis. For more information on how to use RWO (Rotating Work Offsets), please see the RWO Tutorial.
Compare this measured X offset with the distance between the origin and the X face in Fusion. If they do not match, move the part in Fusion until the measured X offset and the model X offset match. Do not adjust the size of the stock in CAD. Instead use the move commands to adjust its location.
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