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  1. T

    Using Sherline lathe to remove riveted balance wheel

    It's important to remember that a balance staff is made out of tempered steel: that means the material is only slightly softer than a drill bit- and it will be difficult to drill.
  2. T

    Using Sherline lathe to remove riveted balance wheel

    Just like a rivet can only be used ONCE- it's the same with a riveted staff. A friction staff is something else- but friction staffs are mainly used in expensive, high grade watches.
  3. T

    Measuring suspension spring.

    ...that's what I'd do-!!
  4. T

    Help Letting down the MS...

    ...better than nothing-!!
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    Praise for "Repair and Restore your 400-Day clock" by Joseph Rabushka

    ...I'd seriously consider making an exception- and applying high-pressure lubricant to the mainspring barrel teeth-!!
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    Help Letting down the MS...

    ...IT'S A CRUEL WORLD-!!!
  7. T

    Microscope

    I'd suggest a Bausch and Lomb Stereozoom microscope. Try looking on Ebay.
  8. T

    JKA Feintaster Calibration

    ...I'd say: take what you can get- and consider yourself lucky- if the gage makes accurate measurements, that's the most important thing.
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    kienenger and obergfell

    I'd suggest running "the power check with the escape wheel" until the mainspring barrel has rotated at least one full turn- 2 turns would be better-!!!
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    Praise for "Repair and Restore your 400-Day clock" by Joseph Rabushka

    Sounds like you thought of everything-!!
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    Praise for "Repair and Restore your 400-Day clock" by Joseph Rabushka

    I'd suggest placing just the mainspring barrel and the matching wheel between the clock plates- and then turning the mainspring barrel at least 1 full turn (2 turns would be better) and carefully check for any binding between these 2 parts. ...and if it was necessary to touch up any of the...
  12. T

    Mainspring lube; do you use something different for 400 day vs. 7 day?

    ...that sounds pretty slick!!! (get it? get it?)
  13. T

    Mainspring lube; do you use something different for 400 day vs. 7 day?

    I asked the same question- and the consensus seems to be that oil is used on 400 day mainsprings instead of grease- because 400 day clock mainsprings unwind very slowly, as opposed to other types of clocks- and grease seems to be too viscous(!)
  14. T

    400 day clock needs new suspension spring

    Did you get the clock running?
  15. T

    Schatz 400 day pendulum locking mechanism

    ...well, "live and learn"-!!
  16. T

    Praise for "Repair and Restore your 400-Day clock" by Joseph Rabushka

    Have you checked the teeth on the mainspring barrel? ...the mainspring barrel turns VERY slowly- and that's where I'd look if the clock was losing power after running for a long time.
  17. T

    “Bentima” (Kern und Sohne) standard - 1961

    GLAD TO HEAR IT!!!
  18. T

    stereo microscope

    This is one of the Bausch and Lomb Stereozoom microscopes that I use all the time.
  19. T

    stereo microscope

    This Bausch and Lomb has a boom stand- which is a lot better suited for working under.
  20. T

    stereo microscope

    Do you have a picture?
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