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The other Thomas Gardner
 
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Default Optical center punch

Well, now. There's an endorsement for you. I think I've seen what
you're talking about but I'm not sure. I believe I just assumed it was
an expensive toy, and moved on. You gotta pointer to the one you like?
You mind if I ask what one might expect to spend on one?

So, how 'ya been? I've been in hibernation for a while, I guess. Sorry.

L8r,
tg.

Tom Gardner wrote:
How did I ever live without this? In my little world, I have had to mark
and drill holes for bolts, threads and pins and have gotten lucky and not so
lucky. The mark of a good machinist is how well he RECOVERS from little
inaccuracies. My designs have always included fudge-factors for eyeballed
holes, as setting-up edgefinders and using the BP for drilling every hole is
just too time consuming and relies on accurate edges, good math and
back-lash problems. My thanks to the person that came up with the optical
center punch, it sure fills a spectrum of jobs. I think this should be one
of the first tools in a machinist's box!


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