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Type: Posts; User: pcm81

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  1. yeah, I realize the atmosphere vs vacuum effects....

    yeah, I realize the atmosphere vs vacuum effects. I just did not think that even the very well polished surface plate be THAT smooth. Looks like gauge blocks flatness from mitutoyo is about 2 uin...
  2. Ahh, that makes sense. Saw your post after...

    Ahh, that makes sense. Saw your post after posing my last reply.
    Thank you for sharing your knowledge.
  3. What i am hearing is that scraping iron plates is...

    What i am hearing is that scraping iron plates is good enough, but really the accuracy of the plate would suffer.
    Terms girding, polishing and lapping are used interchangeably by many people, even...
  4. Why are old surface plates scraped instead of polished?

    Greetings all.
    It has been a while since my last post. Been a bit busy with work, rather than just fun stuff.

    Anyhow, I had a question I meant to ask, but havn't.

    Why are the metal surface...
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