Results 1 to 9 of 9

Thread: Well Honed

  1. #1
    Senior Member dancraig's Avatar
    Join Date
    Dec 2009
    Posts
    175
    Thanked: 58

    Default Well Honed

    The probing tool for an electron microscope had a tungsten tip sharpened to the width of one atom.

  2. #2
    Senior Member Kingfish's Avatar
    Join Date
    Dec 2008
    Location
    South Florida
    Posts
    1,057
    Thanked: 255

    Default

    I want the hone that sharpened that probe!! I move to start another section on Advanced-Advanced Honing for that level of sharpening.Glen stated that the best edges are about .5 microns across. Atoms are measured in nanometers, for Iron, they measure around .3 nanometers or somewhere close to that. That makes whoever hones that probe more than 1000 times better than the best of us... and the hone, well that baby had to have a effective grit rating of about 30,000,000 or for short 30,000K. I was always proud to be a passionatte amateur, but now I feel like a rank one.

  3. #3
    I used Nakayamas for my house mainaman's Avatar
    Join Date
    Aug 2009
    Location
    Des Moines
    Posts
    8,664
    Thanked: 2591
    Blog Entries
    1

    Default

    To the best of my knowledge Electron Microscopes do not have tips, Atomic Force Microscopes do though.
    Stefan

  4. #4
    I used Nakayamas for my house mainaman's Avatar
    Join Date
    Aug 2009
    Location
    Des Moines
    Posts
    8,664
    Thanked: 2591
    Blog Entries
    1

    Default

    Quote Originally Posted by Kingfish View Post
    I want the hone that sharpened that probe!! I move to start another section on Advanced-Advanced Honing for that level of sharpening.Glen stated that the best edges are about .5 microns across. Atoms are measured in nanometers, for Iron, they measure around .3 nanometers or somewhere close to that. That makes whoever hones that probe more than 1000 times better than the best of us... and the hone, well that baby had to have a effective grit rating of about 30,000,000 or for short 30,000K. I was always proud to be a passionatte amateur, but now I feel like a rank one.
    STM, AFM can get you 2-10 nm resolution so those tips are definitely as thin. They are for sure not made by hand or with tools , probably its a grown crystal of some sort.
    Stefan

  5. #5
    Senior Member dancraig's Avatar
    Join Date
    Dec 2009
    Posts
    175
    Thanked: 58

  6. #6
    Never a dull moment hoglahoo's Avatar
    Join Date
    Feb 2008
    Location
    Tulsa, OK
    Posts
    8,922
    Thanked: 1501
    Blog Entries
    1

    Default

    Quote Originally Posted by Kingfish View Post
    that baby had to have a effective grit rating of about 30,000,000 or for short 30,000K.
    There have been stories about the rare, but very real 30,000k hone. There are even some references to it here on SRP if you dig hard enough. Here are a couple of teasers:
    Quote Originally Posted by hi_bud_gl View Post
    Let me know differences between your natural nakayama and 30000 k Please.
    Quote Originally Posted by joes978 View Post
    I finally got my Japanese Suita stone and it was definatley worth the price. While I can't compare it to a man made 30,000k, I can say that....
    But don't hold your breath for one - they don't grow on trees!
    Find me on SRP's official chat in ##srp on Freenode. Link is at top of SRP's homepage

  7. #7
    Senior Member blabbermouth JimmyHAD's Avatar
    Join Date
    Feb 2008
    Posts
    32,564
    Thanked: 11042

    Default

    Quote Originally Posted by hoglahoo View Post
    There have been stories about the rare, but very real 30,000k hone. There are even some references to it here on SRP if you dig hard enough. Here are a couple of teasers:



    But don't hold your breath for one - they don't grow on trees!
    I'd sell my soul for a Devonshire oilstone .....sigh....
    Be careful how you treat people on your way up, you may meet them again on your way back down.

  8. #8
    I used Nakayamas for my house mainaman's Avatar
    Join Date
    Aug 2009
    Location
    Des Moines
    Posts
    8,664
    Thanked: 2591
    Blog Entries
    1

    Default

    Quote Originally Posted by dancraig View Post
    So how are those related to the Electron Microscope?
    Stefan

  9. #9
    Senior Member kevint's Avatar
    Join Date
    Mar 2008
    Posts
    1,875
    Thanked: 285

    Default

    They have machines, high tech 'sandblasters', that shoot ions. Now if I were a lense polisher you know I'd stay late a few nights per week. ...
    One of the things they do with these is polish the lenses of the astrophysics kinda telescopes. Again, just another aspect of the universality of sharpening(honing the lens)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •