Thanks Goober

:rolleyes:

I wanted to check the flatness of my lapping plate. My wife is a machinist and took it to work with her to see what could be done. Cool, one of those high tech calibration guys should give me some good input I thought. Regular machinist aren't allowed in their area for some reason. Her foreman took it over.

They stand there looking it over. Set it down on their giant slab and try to rock it. ( you know, poking on it)
Then dude comes back and says. It's pretty flat. :rant: gimme a break. sheesh. I know it's pretty flat. So much for the idea of making a comparison between plate flatness and lapped stone.

I think Ive met that guy.:roflmao

Thank you so much for that great laugh :roflmao:roflmao:roflmao Now that was funny......

So, do those guys work for NASA?

Maybe you should ask them how they lapped their giant slab?

HEE they could work for nasa

I heard more. their fear was to touch the abrasive with any of their tools, my wife was advised not to use her comparator on them either. So there went my weekend project.

I would not be interested in buying her a new 400$ gauge

they do have an optical comparator... maybe if there is another slow day some measurements could be gathered.

Nice.

They didn't even get a flashlight to put behind it or anything?

Maybe you could lap your highest grit hone with it and see if they'll run their tools over that surface, that'll give you a more usable figure anyway. Maybe do it a few times to get a nice average.

I didn't get the full info on the optical. (Finest hone--- my very first thought btw) but it's a gizmo that projects a straight line with the object under magnification and somehow measure the distance between the reference line and surface of the part.

I should have paid more attention at the company party/ tour. I was too distracted by the immaculate cleanliness and that huge beige and red granite reference... it's about 4 feet wide 6 long and probably 16 inches thick.
I may have been thinking what it'd take to steal it.

Quote:

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Originally Posted by kevint

I was too distracted by the immaculate cleanliness and that huge beige and red granite reference... it's about 4 feet wide 6 long and probably 16 inches thick.
I may have been thinking what it'd take to steal it.

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:eek:

One man couldn't budge that piece of rock if his life depended on it!

I've got one that's about 2'x2'x4" and it is a PITA to move, I can only imagine what it took to get that beast in place.

BTW you must have a cool little lady if she's into getting her hands dirty in a machine shop.

In truth I have a strong dislike for thieves and dishonesty. Not to mention is weight easily exceeded the capacity of my PU.:D

She is a cool little lady. Thanks.