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  1. #31
    Join Date
    Aug 2019
    Location
    Revesby - Sydney Australia
    Age
    54
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    554

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    Most ingenious answer: hand-pump piston. It certainly is that shape...



    but no, it is much more mundane
    the holder for a cheap diamond dresser, for a surface grinder.
    IMG_2377.jpg IMG_2366.jpg


    The dressing rod was about $3 shipped:
    https://www.aliexpress.com/item/4000340991244.html

    and someone convinced me to have a solid holder - nearly as tall as the rod. I found a slug of cast iron the right size, but it was quite heavy, so I needed to machine some weight off it for safe handling.


    The web page said the diamond should be trailing by 15, so I made the top slope away at that angle, to help me line up the tangent of the wheel for the trailing position on it.

  2. #32
    Join Date
    Sep 2006
    Location
    Mallacoota,VIC,Australia
    Age
    51
    Posts
    947

    Default

    There's no way I would have guessed that and got it right. That's a good idea , basically a good size weight that will stay on the magnetic chuck and hold the diamond dresser to dress the wheel.
    All The Best steran50 Stewart

    The shortest way to do many things is to do only one thing at once.

  3. #33
    Join Date
    Sep 2008
    Location
    Riddells Creek, Vic.
    Posts
    701

    Default

    It's hard to see in the photo but is the shank of the diamond tilted to 15 degrees also?

  4. #34
    Join Date
    Aug 2019
    Location
    Revesby - Sydney Australia
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    54
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    554

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    Quote Originally Posted by steran50 View Post
    There's no way I would have guessed that and got it right.
    Can't make them too easy

  5. #35
    Join Date
    Aug 2019
    Location
    Revesby - Sydney Australia
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    54
    Posts
    554

    Default

    Quote Originally Posted by Techo1 View Post
    It's hard to see in the photo but is the shank of the diamond tilted to 15 degrees also?

    No. I thought about it, but in the end machining simplicity won out:

    surface grinder dresser.jpg

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