Re: [CAD_CAM_EDM_DRO] Re: Locating already drilled holes

In a message dated 10/10/2000 4:53:59 PM Hawaiian Standard Time,
janders@... writes:

<< I've used steel balls to pick up hole center with an indicator. It's
also useful if you need to align two holes to an axis.
Need either a sharp and burr free corner, or a dead concentric chamfer
though, don't whirly-gig deburr a hole then try to locate with a ball.

Jon

>>

Jon,

If the hole is threaded, I have used socket head shoulder bolts/stripper
bolts with the heads turned off. Most are concentric to a few thou. Rock
hard stuff to turn though.

Peter
THRD, Inc.