Why a Vostok crown feels loose (for anyone who was curious)
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  1. #1
    Member joecool's Avatar
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    Why a Vostok crown feels loose (for anyone who was curious)

    The winding stem position within the crown when screwing the crown home (when the crown feels loose)
    Name:  Vostok1.gif
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    The crown pulling out to engage the winding stem
    Name:  Vostok2.gif
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    The winding stem when engaged for winding or time ajustment
    Name:  Vostok3.gif
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  2. #2
    Member domoon's Avatar
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    Re: Why a Vostok crown feels loose (for anyone who was curious)

    AH, the crown was the one on lower part of the images? took it a while for me to notice it.
    great illustration, thanks!

  3. #3
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    Re: Why a Vostok crown feels loose (for anyone who was curious)

    Excellent models joecool!
    Now,... wouldn't it be nice to have an entire mechanism done like this?
    Like a modified video of a disassembly showing closeups of how each piece goes together and how it functions!

    Should only take you a couple hours! :)

    One suggestion though,... the Boctok logo might be less confusing while still looking cool if it was perhaps a slowly rotating icon in upper right corner away from the actual mechanism.

    Cheers!
    Well done!
    joecool and GuessWho like this.
    Hidden Content MYSTERIAN

  4. #4
    Member joecool's Avatar
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    Re: Why a Vostok crown feels loose (for anyone who was curious)

    Quote Originally Posted by mysterian View Post
    Excellent models joecool!
    Now,... wouldn't it be nice to have an entire mechanism done like this?
    Like a modified video of a disassembly showing closeups of how each piece goes together and how it functions!

    Should only take you a couple hours! :)

    One suggestion though,... the Boctok logo might be less confusing while still looking cool if it was perhaps a slowly rotating icon in upper right corner away from the actual mechanism.

    Cheers!
    Well done!
    Thanks for the kind comments, The model is just a rather crude representation i created for another thread and thought it might be of use explaining why the Amphibia crown is so wobbly.As for making the entire movement in cad,maybe one day! it could be done relatively easy if the original Schematics of the mechanism with relative sizes were available If a cad model was to be made of the mechanism i would prefer it to be as accurate a representation as possible and because i'm not too keen on stripping my mechanism and getting a micrometer and callipers to it
    As for the logo i just wanted something to emphasize the movement of the otherwise smooth stem
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  5. #5
    Member hoja_roja's Avatar
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    Re: Why a Vostok crown feels loose (for anyone who was curious)

    Great work!
    Thanks for sharing!!
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  6. #6
    Member Lol965's Avatar
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    Re: Why a Vostok crown feels loose (for anyone who was curious)

    One image is better than a thousand words.
    Three images are better than one million.

    Thanks for sharing!
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    Member Arizone's Avatar
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    Re: Why a Vostok crown feels loose (for anyone who was curious)

    Doesn't seem entirely accurate as the crown will still wobble regardless of the position of the stem. Your first animation suggests the stem has to be pushed in completely in order to wobble, while the third animation suggests it can't wobble in this position when it certainly does.

  8. #8
    Member joecool's Avatar
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    Re: Why a Vostok crown feels loose (for anyone who was curious)

    Quote Originally Posted by Arizone View Post
    Doesn't seem entirely accurate as the crown will still wobble regardless of the position of the stem. Your first animation suggests the stem has to be pushed in completely in order to wobble, while the third animation suggests it can't wobble in this position when it certainly does.
    The model graphic is only a crude representation to illustrate the principle of the crown/stem relationship which allows the crown to wobble on the stem due to their non fixed nature of connection,as you have pointed out the crown still wobbles when engaged to the stem,but to a much lesser degree. Therefore in order to get the principle across clearly i thought it best to supply the graphics as is (i could have put a wobble on all three graphics but i feel it would have confused the overall impression as i was dealing with a limited number of frames per gif image)
    The reason the animation is as crude is because this forum only allows for a limited size of animated gif (around 280kb or so which at this size of graphic =maximum amount of animation frames of 9 frames per graphic ).I hope this helps you understand why the graphics are the way they are.
    By the way here is graphic 3 with a wobble
    Name:  Vostok4.gif
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    Last edited by joecool; October 20th, 2014 at 16:06.

  9. #9
    Member Arizone's Avatar
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    Re: Why a Vostok crown feels loose (for anyone who was curious)

    It's best not to upload images directly to the forum if file size is a limitation. Better to upload them elsewhere (imgur: the simple image sharer) and use that URL. It might also be possible to insert one of the new video formats here rather than a gif.
    joecool likes this.

  10. #10
    Member ecalzo's Avatar
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    Re: Why a Vostok crown feels loose (for anyone who was curious)

    won..der..ful .. amazing my friend.. i like it so much.. i shared your 3d models with the italian guys here Vostok wobble crown - rendering model - funzionamento 3d and i also mentioned you and your great job.. i hope you like that i shared them.. elsewere just tell me..
    joecool likes this.
    watches are meant to tell times..

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