moonlight machine
Diamond
- Joined
- Nov 19, 2007
- Location
- marysville ohio
My mill has a DRO with absolute and incremental, very useful. Here is a quick and easy way to find the center of a bore or diameter. I put a 5/8 dowel pin in the spindle, then touch on the diameter. "0" that axis DRO absolute. Touch off on the opposite side, "0" the DRO on incremental. Move to somewhere close to center, switch between absolute and incremental and move the axis till absolute and incremental read the same. It's dead easy to be within .002 of center. It's easy to sweep in with an indicator once you are that close. I have been doing this for at least 15 years and as I centered on a diameter this morning it occured to me to post my method.