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    Thin cuts

    NICE (and educational for me) addition ! Thank you Jerry ! Hessel
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    Thin cuts

    Tom, E.g. KM Ultra-thin Slitting Cutter 0.1mm Hessel
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    Shape of escapement teeth?

    Chris, SUPERB book about this: Laurie Penman: Practical clock escapements. https://www.amazon.com/Practical-Clock-Escapements-Laurie-Penman/dp/095232704X Hessel
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    #5 Regulator progress

    Spectacular Johnny ! And an educational project for many of us. Thanks a lot for showing "the making of …" Hessel
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    Painter’s tape

    To avoid misunderstanding: My remark was -not- to criticize this procedure, but caused by the fact that I thought (to my surprise) that the dividing was done without proper mechanical fixes. Happy to hear now that the size of the first tooth was the same as the last+1 ….;) Hessel
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    Painter’s tape

    I (personally) don' expect that many will do this, because most mills have tension-levers to securely fasten the table/bed. But if that (common) option is not available, this seems to be a good solution. Hessel
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    Riefler Pendulum Bob turning

    John, I have asked my friend, building a Riefler F type. Here his answer, may be this can help another little bit ? Hessel ///// So I quote his answer: It was quite a search, but I think I now know what it is. And then I concentrate entirely on the bob that John is talking about: the...
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    Riefler Pendulum Bob turning

    About the "free machining" INVAR. . Interesting information (even about cutter geometry!) HERE. H.
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    Riefler Pendulum Bob turning

    Well, last resort here.... I presume you also know the fabulous book-series: Präzisionspendeluhren (PPU) von Juergen Ermert. Website: HERE I saw there that the author (above) can be reached easily:Juergen.Ermert@PPU-Buch.de I should think, that he should ….:-) know the answer. Hessel
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    Riefler Pendulum Bob turning

    John, A friend of mine, is building a Riefler. He possesses the book from Dieter Riefler about his grandfather: Sigmund Riefler. Do you know the contents of this book ? If the answer is "no" than I can ask him if... there is information in it. Hessel
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    Riefler Pendulum Bob turning

    Hi John, As far as I can see here in this bob there are 2 nuts in the middle, which can probably adjusted by small pins (?) in them, just as is the case in small lathe chucks. I can also imagine that after the adjusting by hand (and polishing/cleaning thereafter) the bob is never touched...
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    What should you know before buying a staking set?

    http://cholla.mmto.org/watches/repair/manuals/KD_staking_tools.pdf Hessel
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    #5 Regulator progress

    John, Showing your beautiful work so often to us, is VERY educational ! It's stimulates, to make your own small buildings, also to a higher level. Thank you so much !!! Hessel
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    Cutting Clock Gears

    Roger, Could it be the fastest way for an answer, to contact Robert Porter directly (via contact page on his website) ? https://learntimeonline.com/ Hessel
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    Self adjusting escape wheels Do they work and what are their probables

    No. IX. CLOCK-ESCAPEMENT AND SELF-ADJUSTING PENDULUM on JSTOR May be above some explanation ? Hessel
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    'Perpetual' Calendar

    Grains, This mechanism was made as an exercise-project for a young clockmaker about 35 years ago. So it never was part of a clock. But …. of course the central axis can adapted to a clock mechanism. If I remember well it was published in an 18 century book..., but I don't know the real origin...
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    'Perpetual' Calendar

    I was allowed to make drawings from an existing perpetual calendar. May be of help ? Some "regular" screenshots and a rotatable... 3D-PDF. (Functions only with Adobe PDF-reader and adapting the settings for 3D-PDF's; so first download and thereafter view). Hessel
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    Clock Project

    Johnny, Clear now. Thanks a lot ! Enjoy all your contributions a lot (and do learn from them). Hessel
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    Clock Project

    Hi Johnny, I'm so sorry, but I did not understand the procedure. The depthing is clear of course. This procedure gives -one- right distance between the 2 centers (of course). But then your sentence...: "I then draw circles in CAD of each distance". I don't understand what "each distance" is...
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    MYSTERY SWINGING CLOCK

    Ciao Carlo, Recently (November) I was in the Amsterdam Arts and Antiques fair "PAN" in Amsterdam. PAN Amsterdam - Home On the exhibition stand of Gude and Meis ( Gude & Meis ✓ Antieke klokken te koop ✓ Ruim assortiment ️) a pendule like yours: Een fraaie Franse bronzen figuratieve pendule...
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