Finding the center of a disk

Spehro Pefhany · 2010-05-25T22:02:54+00:00

Sorry for the metal content, but there might be someone here who knowsthe answer! I would like to find the center of a 6" metal disk (center the millspindle precisely over it). Here is my plan... Use an edge finder and find 3 points at roughly 45 degrees to the center by moving only the X axis, then only the Y axis (forming a right triangle) with the hypoteneuse over the disk. Go halfway onboth X and Y between those pairs of X and Y numbers. Does this sound like a reasonable plan?

May 25, 2010 21 Replies

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Harold & Susan Vordos 16 years ago

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Not to me. I use a DTI.

Harold

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Xmilker 16 years ago

I use a compass myself. Measure the diameter of the circle set the compass to the radius put one leg of the compass on several points around the edge and the other leg will cross on the center.

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