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#55622
david pierce
Participant

    Tom,
    Using the eyeball method when centering a part like this with layout die, I would always measure the part, set the calipers to 1/2 of that distance and then scribe two lines from both edges of the part. The center of the part will always be between the two lines produced on the part. If you later get a height gauge and surface plate you can mark the scribed lines in a more precise fashion and the two lines will be more coincident. To line up the spindle center to the scribed line I usually used the pointer tip from the wiggler set. There are many other ways to accomplish the same end result and as long as a correct part is produced the method used is a matter of choice. At some point in time when you can get the machine set up to accurately cut to numbers you will begin to use the layout method less. It will however always have a useful place in machine work.
    david