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Thread: Cast iron plate

  1. #1
    Join Date
    Jun 2009
    Location
    san jose, ca. usa
    Posts
    695

    Default Cast iron plate

    I have two of these, same condition, what can I use them for. Is it worthwhile to have them surfaced?

  2. #2
    Join Date
    Jun 2009
    Location
    san jose, ca. usa
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    695

    Default


  3. #3
    Join Date
    Jan 2009
    Location
    Nordland, WA
    Posts
    845

    Default

    Na, no good. Send 'em to me....

    Yeah they're good! Grind 'em or scrape 'em true and you'll have a couple of very nice reference flats.

    Pete
    1973 SB 10K .
    BenchMaster mill.

  4. #4
    Join Date
    Apr 2017
    Location
    Kelowna BC
    Posts
    1,216

    Default

    A pass on a Blanchard grinder would make them pretty nice.

  5. #5
    Join Date
    Jun 2005
    Location
    Almost Dallas
    Posts
    1,572

    Default

    I would be willing to take one of those off your hands, but San Jose is so far away.

  6. #6
    Join Date
    Mar 2005
    Location
    Toronto
    Posts
    10,037

    Default

    they're surface plates. use a fine stone or deburring file to take off any raised area....and use them as surface plates. If you want them redone, scraping imo is the way to go.
    .

  7. #7
    Join Date
    Jun 2004
    Location
    N.J.
    Posts
    1,134

    Default

    Quote Originally Posted by 754 View Post
    A pass on a Blanchard grinder would make them pretty nice.
    I've been told that grinding would leave a surface that would be more difficult to scrape. A planer would leave a better surface.

  8. #8
    Join Date
    Aug 2002
    Location
    Albuquerque
    Posts
    2,977

    Default

    That is exactly like the one at school the kids use, there is a large granite one covered if the adults ever need a better one. :-)
    ...lew...

  9. #9
    Join Date
    Apr 2017
    Location
    Kelowna BC
    Posts
    1,216

    Default

    It really depends what kind of flat he needs.
    A quick grind may be good bang for the buck.
    A lot of us never need scraped.

  10. #10
    Join Date
    Jun 2004
    Location
    N.J.
    Posts
    1,134

    Default

    Quote Originally Posted by 754 View Post
    It really depends what kind of flat he needs.
    A quick grind may be good bang for the buck.
    A lot of us never need scraped.
    Then it's not a surface plate. Before I'd do more than clean and deburr it, I'd survey it's flatness first.
    If I want a ground surface, I've got my C.I. table saw top.
    Last edited by reggie_obe; 07-08-2018 at 08:31 AM.

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