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  1. #1576
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    Oct 2011
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    Norwood-ish, Adelaide
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    Default


    (well, maybe not all of it)

    Michael

  2. #1577
    Join Date
    Jul 2010
    Location
    Melbourne
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    Couple of pictures for you Michael.
    I thought about your grinder when I first saw this, but on closer inspection its mounting is different.

    Stuart
    Attached Images Attached Images

  3. #1578
    Join Date
    Sep 2008
    Location
    Riddells Creek, Vic.
    Posts
    831

    Default Hommel Werke Height Micrometer.

    I took a bit of a gamble on this one with Grays Online but it turned out to be in quite good condition although the wrinkle finish paint is chipped in some areas.

    DSC01319.jpg

    Even the wooden box is in reasonable condition considering that it is 40 to 50 years old.

    DSC01322.jpg

    The over/under attachment contact face required a little lapping to remove a few tenths of wear and now checks out within a tenth of a thousandth.

    DSC01320.jpg

  4. #1579
    Join Date
    Aug 2012
    Location
    Australia
    Posts
    645

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    Quote Originally Posted by Techo1 View Post
    I took a bit of a gamble on this one with Grays Online but it turned out to be in quite good condition although the wrinkle finish paint is chipped in some areas.
    Good to see it show up here. I had my eye on it but let it lapse. A bit hard to explain why I purchased a second height micrometer in the space of a month... Mine originally came from Hawker De Havilland.

    What does yours weigh? Mine is a different style weighing 30kg. Much heavier than I expected. It looks so small in the photos..

    IMG_1777.jpg IMG_1781.jpg

  5. #1580
    Join Date
    Sep 2008
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    Riddells Creek, Vic.
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    I'm not sure what the Hommel weighs, maybe 4 or 5kg. The Mitutoyo that you have is the type I was really after but they went for more than I was willing to pay at the auction. We had one very similar to yours in the machine shop at TAA although it was a later model. I really liked using it and have been looking for one ever since and now that a lot of companies are switching to CMM's these are becoming more affordable.

    Edit: It actually weighs more than I thought - 7.7kg. And 11.1kg including the wooden box.

  6. #1581
    Join Date
    Mar 2008
    Location
    nowra
    Posts
    1,598

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    Picked up these from Gumtree today
    Attached Images Attached Images
    BETTER TO HAVE TOOLS YOU DON'T NEED THAN TO NEED TOOLS YOU DON'T HAVE

    Andre

  7. #1582
    Join Date
    Jul 2010
    Location
    Melbourne
    Posts
    9,088

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    Quote Originally Posted by variant22 View Post
    A bit hard to explain why I purchased a second height micrometer in the space of a month.
    I think you might be in a group where many will just nod lol. I'm sure some are rolling there eyes, but hey think of it as a new golf club

    If your HG is going to spend its life out of the box, there are slots for a polycarb cover that sildes over the block stack, which you may like to make.(assuming its the same as mine, which it appears to be)

    Is the set block in there?

    Stuart

  8. #1583
    Join Date
    Aug 2012
    Location
    Australia
    Posts
    645

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    Quote Originally Posted by Techo1 View Post
    I'm not sure what the Hommel weighs, maybe 4 or 5kg. The Mitutoyo that you have is the type I was really after but they went for more than I was willing to pay at the auction. We had one very similar to yours in the machine shop at TAA although it was a later model. I really liked using it and have been looking for one ever since and now that a lot of companies are switching to CMM's these are becoming more affordable.
    Interesting stuff. It is always hard to tell from photos. I honestly thought mine would weigh no more than 10kg.

    Quote Originally Posted by Stustoys View Post
    I think you might be in a group where many will just nod lol. I'm sure some are rolling there eyes, but hey think of it as a new golf club

    If your HG is going to spend its life out of the box, there are slots for a polycarb cover that sildes over the block stack, which you may like to make.(assuming its the same as mine, which it appears to be)

    Is the set block in there?

    Stuart
    Thanks for the tip on the slots for polycarb. I will check them out when I remove it from the box.. More of a crime of opportunity with a mix of curiosity. Like these..

    IMG_1869.jpg IMG_1881.jpg

    As for the set block - I will have to fish it out to check. I might need some instructions on how to use it!

  9. #1584
    Join Date
    Nov 2008
    Location
    Perth WA
    Age
    71
    Posts
    6,458

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    Quote Originally Posted by Techo1;1847337...............
    The over/under attachment contact face required a little lapping to remove a few tenths of wear and now checks out within a tenth of a thousandth.

    [ATTACH=CONFIG
    341136[/ATTACH]
    Hi Lex,

    Is there any chance of a few close up photos of the under/over attachment and its spring mount? I have a similar height mic but no attachment. - http://www.woodworkforums.com/showth...12#post1675112

    Bob.

  10. #1585
    Ueee's Avatar
    Ueee is offline Blacksmith, Cabinetmaker, Machinist, Messmaker
    Join Date
    Dec 2011
    Location
    Canberra
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    39
    Posts
    4,515

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    Quote Originally Posted by variant22 View Post
    Interesting stuff. It is always hard to tell from photos. I honestly thought mine would weigh no more than 10kg.


    Thanks for the tip on the slots for polycarb. I will check them out when I remove it from the box.. More of a crime of opportunity with a mix of curiosity. Like these..

    IMG_1869.jpg IMG_1881.jpg

    As for the set block - I will have to fish it out to check. I might need some instructions on how to use it!
    Wow, nice one, of those i am truly jealous.
    1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.

  11. #1586
    Join Date
    Sep 2008
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    Riddells Creek, Vic.
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    831

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    Quote Originally Posted by Anorak Bob View Post
    Hi Lex,

    Is there any chance of a few close up photos of the under/over attachment and its spring mount? I have a similar height mic but no attachment. - http://www.woodworkforums.com/showth...12#post1675112

    Bob.
    No problem Bob, here are some low quality pictures to give you an idea of what is required. It would be pretty easy to reproduce although it should really be hardened, ground and lapped on the two measurement faces. The tricky part will be making the spring clip.
    If you decide to make your own I will measure things and draw up a sketch for you.

    Lex.

    DSC01323.jpgDSC01324.jpgDSC01325.jpgDSC01326.jpgDSC01327.jpg

  12. #1587
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    Nov 2008
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    Perth WA
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    Thank you Lex.

    There is a bit more to it than initially meets the eye.

    If you were to trace around the flat bits with a pencil onto a scrap of paper and possibly provide a couple of thicknesses, that would be a greatly appreciated start.

    Bob.

  13. #1588
    Join Date
    Sep 2008
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    Riddells Creek, Vic.
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    SSA0ED0430015030310310.pdf

    Bob, I never was very good at technical drawing but there should be enough information here to get you started. I will sketch up the spring clip later.

    Lex.

  14. #1589
    Join Date
    Nov 2008
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    Perth WA
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    71
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    Outstanding Lex.

    I greatly appreciate your efforts. Thank you.

    Given the minimal use the height micrometer will ever be subjected to in my hands, I imagine something unhardened might be up to the task. What do you think?

    Bob.

    PS. What do you imagine is the purpose of the 20 degree ramp?
    Last edited by Anorak Bob; 3rd Mar 2015 at 11:34 AM. Reason: Another question added.

  15. #1590
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    Jul 2010
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    Melbourne
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    Quote Originally Posted by Anorak Bob View Post
    What do you imagine is the purpose of the 20 degree ramp?
    I assumed it was to make sure you didn't try and set up off that surface by mistake.

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