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Thread: Help with lapping of very large hone

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    Default Help with lapping of very large hone

    Hi anyone has exprienced lapping of large hone (8x17"). I was given an old hone by my aunt who had it from her father who was involved in national stone mining business. It looks slate ish however I could be surprised due to background of the original owner. I do not want to just experiment with this hone. I do have stone plate large enough to accommodate sanding belts from floor sander however they do not come in higher grits. Anybody can chip in. Many thanks.

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    Senior Member northpaw's Avatar
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    How much lapping does it need? I've no experience with lapping huge stones, but I can tell you that the bulk of your work needn't involve higher grits. Once you get it flat enough with the lower grits, I'd probably just set the hone on a counter and polish the top with sheets of wet/dry sandpaper taped to your stone plate.

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    aka shooter74743 ScottGoodman's Avatar
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    Take it to a place that does marble & granite counter tops. They have the equipment and know-how to turn granite and marble to shiny glass
    Bruno and Geezer like this.
    Southeastern Oklahoma/Northeastern Texas helper. Please don't hesitate to contact me.
    Thank you and God Bless, Scott

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    Quote Originally Posted by northpaw View Post
    How much lapping does it need? I've no experience with lapping huge stones, but I can tell you that the bulk of your work needn't involve higher grits. Once you get it flat enough with the lower grits, I'd probably just set the hone on a counter and polish the top with sheets of wet/dry sandpaper taped to your stone plate.
    This is what I thought of just was not sure about edges of those papers damaging the work.

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    Quote Originally Posted by shooter74743 View Post
    Take it to a place that does marble & granite counter tops. They have the equipment and know-how to turn granite and marble to shiny glass

    Only trouble is that on this side of pond the price is a bit steep and also this hone is the only one with the history and I would prefere to stay in low speed.

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    I used Nakayamas for my house mainaman's Avatar
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    Quote Originally Posted by adrspach View Post
    Only trouble is that on this side of pond the price is a bit steep and also this hone is the only one with the history and I would prefere to stay in low speed.
    slap to sheets onf sand paper on flat surface and lap with running water.I doubt you will have any problems
    Stefan

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    Senior Member eleblu05's Avatar
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    post some pic of this stone

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    Know thyself holli4pirating's Avatar
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    What about lapping grit on a hard flat surface?

    I'm also curious to see pics.

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    'tis but a scratch! roughkype's Avatar
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    What was such a huge hone used for?
    "These aren't the droids you're looking for." "These aren't the droids we're looking for." "He can go about his business." "You can go about your business."

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    Senior Member Brighty83's Avatar
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    What! 8" x 17"

    Thats a bench top not a sharpening stone lol

    How about one of the 10" by 4" DMT Lapping plates sideways? lol Maybe you could create a metal rail system on either side of the stone that keeps the DMT plate level all the way across (as you would have 2" either side with that plate) and drop the rails half mm each time until you get it how you want it.

    Name:  Lapping Large Stone.jpg
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    Name:  Jig for large stone.jpg
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    The same method as you would use to flatten ground for paving etc. With paving you sink two pieces of wood or metal into the ground, level it and then drag a third piece of wood or metal across to make it level and remove any excess dirt. (in your case excess stone lol)

    If you have some patients, a few spare hours and a workshop you could make a jig to do this. I would make it so its adjustable up and down from all 4 points.

    what would a stone that size be used for!?!?
    Last edited by Brighty83; 08-18-2011 at 09:52 AM.

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