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  1. #91
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    Aug 2010
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    Great looking video Well done

    What's next?

    Russell
    vapourforge.com

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  3. #92
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    Nov 2011
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    Mickleham
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    Looks good.

    Although one thing I've noticed is that the cogs keep stepping backwards as you to up to the oscillating cog.

    I'm wondering if the top 2 or 3 cogs could be turned to face the other way, therefore creeping back to the front, allowing a shallower chassis, and maybe help with the frame warping that you experienced earlier due to the pendulum weight.

    Just a thought.

    Cheers

  4. #93
    Join Date
    Oct 2008
    Location
    sydney
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    408

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    Thanks Jemijona....The smaller 20tooth cogs cannot be turned around because they would mesh with the wrong gear. I could reduce the thickness of the spacers but that would only reduce the frame by 75mm or so. The improvement overall would not warrant the amount of fiddlingthat would be required to pull this off. Even so, the reduced spacer set up would still require the frame to be braced to stop the frame slump. Hope this makes sense.

    Dean.

  5. #94
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    Nov 2011
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    Mickleham
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    Yes, the spacers would have to be fiddled with, but as you say, too much fiddling to do now, so stay with it.

    Good to see it tick tocking now. Almost time to set and forget???

    And how much of a run does one pull of the weights give you?

    Cheers

    Rocket

  6. #95
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    Oct 2008
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    sydney
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    Tonight i have shortened and balanced the pendulum, added the magnet and polished the timing wheel teeth. I will leave it running overnight and see how long it goes for! I have also figured out the space and pendulum rod issue. There need to be a little gap to allow the pendulum rod to change height slightly as it swings! DOH.

    Dean.

  7. #96
    Join Date
    Apr 2012
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    Sydney
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    45
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    174

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    Dean, the big question is did you make it in time to present this for your 15th anniversary as you had intended?

  8. #97
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    Luckily that anniversary is 1st Dec this year so I have a little leyway still!
    Dean.

  9. #98
    Join Date
    Jul 2003
    Location
    geelong
    Age
    88
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    773

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    Quote Originally Posted by 1964deano View Post
    What I am saying is that the clocks needs 6kg to move the timing wheel thereby turning the hands. The 16 kg i put on should have been enough to pulse the pendulum throug the escarpment; in other words it shoul be able to tick all on its own with that much weight. Why it doesnt beats me. I sure have enough bearings in it!
    I have not yet installed the electro pendulum yet so I " pulsed" the pendulum by hand to see how much weight was needed to make the clock run. I am designing a housing to fit the electronic circuit, batteries and coil. It should be not much larger than the 4xD sized batteries that are used to run it.
    Dean
    Dean, If your clock needs 6kg to turn the timing wheel you have, arbors and bearings are out of alinement, 1 kg should be enough to spin the timing wheel without the escapement attached. I designed my own clock, all Lignum Vitae (timber)bearing and arbors , running time with 2, 5kg weighs is over 70 hours now 6 years old , no signs of wear. John.

  10. #99
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    Oct 2008
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    sydney
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    Hi John, My clock currently needs 10kg to run. When i had the escarpment out it use to run on 580gms. When i pull it apart next I will check how much weight its needs to run!. I did say it needed 6kg perhaps as you say the shafts are not aligned as they should be. I have installed the electronics tonight and it seems to be doing OK.


    I have the green led lighting up from time to time. I have been able to remove 1 kg of weight so far hoping for more. My friend Stefan who has made this same clock said he started with 10 and has so far reduced the weight to 8kg.
    I am not sure whether my original idea of having the electronics run & regulate the pendulum will still work. Time will tell. For now I need to re-design the weight set up so that the weights have a longer drop till they hit the floor. I dont want to have to be winding the clock too often!
    John how often do you have to wind your clock? ( which might I say looks awesome!...where are the rest of the pics of it? can you post your album link?)
    Dean.

  11. #100
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    Nov 2011
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    Quote Originally Posted by 1964deano View Post
    John how often do you have to wind your clock?
    Unless my maths is way out, 70 hours works out to just slightly under every 3 days.

    Cheers

  12. #101
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    Sorry didnt read the actual words! Ok then, how long is the drop and what is the diameter of your drum?

    Dean.

  13. #102
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    Dean , The clock was well documented on Woodwork Forums but has been lost over the years, maybe one of the moderators can find the thread.
    A couple of photos attached. John.

  14. #103
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    thnaks nice pics..
    Dean

  15. #104
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    Aug 2010
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    Glenbrook NSW Australia
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    John
    That is one clock to be proud of. A inspiration to all the rest of the apprentice clock builders out there.
    Do you have any details on the clock. I was tiring to work out the pendulum mount.
    Dean Do keep us up to date on your electronics and how there work out


    Russell
    vapourforge.com

  16. #105
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    Oct 2008
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    I will Russell....I have almost decided that the electronics cannot significantly reduce the weight that is required to make the clock tick. The circuit has been designed to regulate the pendulum's speed. My feeling is that a hybryd arrangement, like the one i had originally envisioned, unfortunately wont work either. I will try however to make my hybrid arrangement work..

    Dean.

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