Skeleton Clock

Discussion in 'Clock Construction' started by WMello, Oct 3, 2017.

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  1. Paul Madden

    Paul Madden Registered User
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    Hi Wagner,

    Thank you for the information on the bench vise. I think its a great idea, and you must get plenty of use out of it. I checked out the link you attached.
    I guess you could adapt any type of suitable vice hardware and add the wood as you said. Then you can really customize it to suit your needs.

    I really appreciate you sharing Wagner.
    Paul.
     
  2. Jim DuBois

    Jim DuBois Registered User
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    That of course makes sense. I was reading the 8000 rpm and was thinking either I am reading something incorrectly or there is something I don't know and need to learn. I too use 12L14 for 99% of the pinions I cut. It machines nicely and can be case hardened if necessary.

    IMG_0834.JPG
     
  3. WMello

    WMello Registered User

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    Lantern Pinions
    SkeletonClock 179.jpg SkeletonClock 182.jpg
    SkeletonClock 185.jpg SkeletonClock 198.jpg
    SkeletonClock 199.jpg SkeletonClock 200.jpg
    SkeletonClock 201.jpg SkeletonClock 202.jpg
    SkeletonClock 195.jpg SkeletonClock 197.jpg
     
  4. David S

    David S Registered User
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    Wagner the trundles look proud, and I couldn't blow up the image enough to see how they would be retained. On my screen looked like epoxy or something.

    How are they going to be retained, or are they press fit?

    David
     
  5. WMello

    WMello Registered User

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    Hi David,

    Press fit (a bit loose) and Loctite.
    The picture was taken just after assembly; waiting the Loctite to cure before machining the ends.

    Wagner
     
  6. David S

    David S Registered User
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    Hi Wagner,

    I hope you have your flak jacket on...lots of folks here don't like engineered adhesives or solder. Although if the application is appropriate it works for me.

    David
     
  7. WMello

    WMello Registered User

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    Well, I hope they are not too mad at me; I'm just following the plans.
     
  8. WMello

    WMello Registered User

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  9. David S

    David S Registered User
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    I was just funnin with you. What type of Loctite did you use? Was it more like an epoxy, rather than the traditional anaerobic stuff?

    David
     
  10. WMello

    WMello Registered User

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    Hi David.

    I Know; really don't care much if people get mad at me.
    I use the Magic Green Goo called Loctite 603

    Wagner
     
  11. WMello

    WMello Registered User

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    Not happy with the small wheels; the teeth looks fat.

    Tir2.png
    Tir1.png

    And fat they are.

    The wheel was cut with the top cutter shown on the picture. The design measurement for the tip is 0.0344

    Considering several possibilities, including witchcraft, turns out the problem is run-out on the CNC spindle.

    I've measured the run-out to be between 0.002" and 0.003". Installing several cutting tools, rotating the collets, and averaging the results.

    The bottom cutter on the picture was cut adding 0.006" to the tool diameter (2 x run-out) on the CAM software; it seems a little too much; looks like 0.005 will be perfect.

    Wagner
     
  12. WMello

    WMello Registered User

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    Better
    Tir3.png
     
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  13. WMello

    WMello Registered User

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    Some parts
    SkeletonClock 211.jpg

    Escape wheel
    SkeletonClock 214.jpg
     
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  14. WMello

    WMello Registered User

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  15. Paul Madden

    Paul Madden Registered User
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    Very nice. Thanks for sharing Wagner.
    Paul.
     
  16. WMello

    WMello Registered User

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    Motion work
    SkeletonClock 221.jpg SkeletonClock 222.jpg
    SkeletonClock 227.jpg SkeletonClock 230.jpg

     
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  17. WMello

    WMello Registered User

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    Fusee, maintaining ratchet and great wheel
    SkeletonClock 233.jpg
    SkeletonClock 238.jpg SkeletonClock 237.jpg
     
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  18. WMello

    WMello Registered User

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    So far...
    SkeletonClock 243.jpg SkeletonClock 244.jpg SkeletonClock 245.jpg
    SkeletonClock 246.jpg
     
  19. WMello

    WMello Registered User

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  20. WMello

    WMello Registered User

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    Things
    SkeletonClock 264.jpg
    SkeletonClock 257.jpg SkeletonClock 261.jpg SkeletonClock 262.jpg
    SkeletonClock 263.jpg SkeletonClock 266.jpg SkeletonClock 267.jpg

    Hello, is there anybody in there ?
    SkeletonClock 255.jpg

    W
     
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  21. WMello

    WMello Registered User

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    More things
    SkeletonClock 270.jpg SkeletonClock 271.jpg
    SkeletonClock 274.jpg SkeletonClock 276.jpg

    It moves
     
  22. Phil Burman

    Phil Burman Registered User

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    Hi Wagner, the clock looks very impressive as does your rate of progress. I am curious about the barrel click and ratchet, there doesn't appear to be a click spring?

    Phil
     
  23. WMello

    WMello Registered User

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    Hi Phil, thank you.

    There is no click spring on the barrel ratchet. The barrel arbor is only used to preload the string after assembly, or release the spring for maintenance. It is not used in normal operation.

    The winding is done on the fusee arbor. At the back of the fusee, there is a ratchet, click and click spring for the winding.

    Wagner
     
  24. Phil Burman

    Phil Burman Registered User

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    If at sometime in the future somebody attempts to wind the clock by mistakenly using the barrel arbor key they could be in for a big surprise.

    Phil
     
  25. harold bain

    harold bain Registered User
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    This is true of all fusee clocks.
     
  26. Phil Burman

    Phil Burman Registered User

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    Not all:
    Fusee barrel click spring.JPG
    It seems to me that skeleton clocks are particularly vulnerable to the casual fiddler. At least with the barrel click on top it will tend to fall back into engagement rather than out, and a spring would give added protection. The fact that many have an unsprung click on the underside of the ratchet doesn't make it any safer.

    Just a thought.

    Phil
     
  27. WMello

    WMello Registered User

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    Pendulum components
    SkeletonClock 279.jpg SkeletonClock 280.jpg SkeletonClock 282.jpg SkeletonClock 288.jpg
    SkeletonClock 283.jpg SkeletonClock 291.jpg SkeletonClock 297.jpg
    SkeletonClock 298.jpg SkeletonClock 299.jpg
     
  28. Allan Wolff

    Allan Wolff Moderator
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    Wagner,
    Looks like you are almost complete!! Thanks for sharing your progress.

    All,
    When making your own fusee clock, it is a good idea to make the fusee winding arbor smaller than the barrel arbor so the key will not fit on the barrel and thus avoid winding the wrong one.

    Allan
     
  29. WMello

    WMello Registered User

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    SkeletonClock 300.jpg SkeletonClock 301.jpg
    SkeletonClock 302.jpg SkeletonClock 305.jpg
    SkeletonClock 306a.JPG

    I will have to take better pictures tomorrow
     
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  30. musicguy

    musicguy Moderator
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    Your cat looks like it's enjoying watching you build the clock.

    Rob
     
  31. WMello

    WMello Registered User

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    Hi musicguy (Maxwell Smart). Yes, the fuzzy guy is very curious.

    Here some entertainment:


    This is the first run. There's still a lot to be made and adjusted.
    The thing is running too fast, the amplitude is too much (aperture angle of the pendulum; is this the amplitude ?), and the escapement action does not look really right. And I may have cut the invar rod too short (shoot-me).

    Wagner
     
  32. WMello

    WMello Registered User

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  33. MartinM

    MartinM Registered User

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    Beautiful workmanship, Wagner.
     
  34. David S

    David S Registered User
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    I for one second Martin's comments. While I have no desire to make one of these from scratch, I certainly admire the craftsmanship.

    David
     
  35. WMello

    WMello Registered User

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    Thank you.

    Your comments are encouragement

    Wagner
     
  36. sharukh

    sharukh Registered User
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    It continually amazes me that such beauty can be produced out of sundry pieces of metal and of course tons of hard work. It's awe inspiring.

    Way to go Wagner.

    Sharukh.
     
  37. WMello

    WMello Registered User

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    Fusee lock
    SkeletonClock 346.jpg SkeletonClock 340.jpg
    Several tries
    SkeletonClock 335.jpg SkeletonClock 336.jpg
    Striking
    SkeletonClock 334.jpg SkeletonClock 347.jpg
    SkeletonClock 342.jpg SkeletonClock 343.jpg
    SkeletonClock 344.jpg

    See it all in action here:


    Wagner
     
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  38. WMello

    WMello Registered User

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    Power run out at 6 days, 22 hours.
    SkeletonClock 352.jpg

    Will run out of fusee before 8 days.
    May get another turn if catch is turned 180 deg
    SkeletonClock 365.jpg

    Hands
    SkeletonClock 349.jpg SkeletonClock 353.jpg
    Almost, but not quite there
    SkeletonClock 361.jpg SkeletonClock 362.jpg
    Spring and rate adjusted, running again
    SkeletonClock 366.jpg
     
  39. David S

    David S Registered User
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    Wagner, while I have no interest in doing what you do. I am in awe of your craftsmanship. More important you have answered my questions when I would like to know how you have done something.

    Thanks for keeping us informed of your progress.

    David
     
  40. WMello

    WMello Registered User

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    Thank you David
     
  41. WMello

    WMello Registered User

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    RateJan07.PNG

    Electric power failure on the morning of day 5.
     
  42. Paul Madden

    Paul Madden Registered User
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    The sound of the ratchet is wonderful. It must be extremely satisfying to see all the components assembled, and to see/hear it working for the first time! Thank you very much for sharing Wagner.

    Paul.
     
  43. Paul Madden

    Paul Madden Registered User
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  44. WMello

    WMello Registered User

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    Hi Paul, thank you.

    It is really satisfying seeing it run for the first time.
    It's running for 7 days per winding, barely.
    I will have to act on the fusee stop to get at least 1/2 turn more.
    Now you can see by the post #91 that I have a little problem with the rate jumping.
    I suspect it's caused by lack of lubrication on the main spring; spring loops sticking, dragging and suddenly releasing.
    I've added a little oil (without disassembly) and it is running again. Results on the coming Sunday.

    Wagner
     
  45. Paul Madden

    Paul Madden Registered User
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    Hi Wagner, I really appreciate all the photos and videos you have been posting. It's a big undertaking to keep such a photographic record, but it's extremely interesting to watch your progress. I'm sure I'm speaking on behalf of the other members of this forum when I say this. Thanks for taking your time to share your clock project with us, and keep up the great work Wagner!

    Best wishes,

    Paul.
     
  46. WMello

    WMello Registered User

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    Still collecting data
    RateJan14.PNG
    Red is temperature
    Blue is rate. Raw data light blue, dark blue for moving average 60
    Is it normal for a spring driven clock to have such a jumpy rate ?

    Meanwhile,
    SkeletonClock 367.jpg SkeletonClock 369.jpg SkeletonClock 371.jpg
     
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  47. Phil Burman

    Phil Burman Registered User

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    #97 Phil Burman, Jan 21, 2018
    Last edited: Jan 21, 2018
    Based on my limited experience I think the rapid increase in rate followed by a gradual steady loss of rate indicates a spring either binding on itself or on the sidewall of the barrel. If you listen long enough every so often you can hear a sudden release of the spring. I found that this action tends to disappear after a few windings. You might also look into your lubrication of the spring.

    Just some thoughts from a relative beginner.

    Phil

    PS: Possibly take the end plates off the barrel and look for marks on the inside of the end plates.
     
  48. WMello

    WMello Registered User

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    Hi Phil, thank you.

    That's what I thought.
     
  49. Paul Madden

    Paul Madden Registered User
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  50. WMello

    WMello Registered User

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    Continue
    RateJan21.PNG
    Working on it
    SkeletonClock 373.jpg SkeletonClock 374.jpg
     

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