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Thread: Tray Rocker

  1. #1

    Join Date
    Sep 2023
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    Tray Rocker

    aka Mechanical Darkroom Assistant....

    I must have too much free time on my hands and sat down and designed this device. Parts are 3D printed from PETG and it uses a NEMA 11 stepper motor and a cheap Stepper Controller that allows changing speed and Run/Stop via an Infrared Hand Control.

    https://www.youtube.com/watch?v=_xUJYRUlezo

  2. #2
    Pastafarian supremo Rick A's Avatar
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    Laurel Highlands, Pa., USA
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    Re: Tray Rocker

    If memory serves me, back in the late 60's or early 70's one (or more) of the photo mags had plans for auto tray rockers. I believe one of them involved air power.
    Rick Allen

    Argentum Aevum
    "Quando omni flunkus, moritati"

  3. #3
    Ironage's Avatar
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    Apr 2012
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    Wichita, KS
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    Re: Tray Rocker

    Fun techy stuff! Even a remote.


    Sent from my iPad using Tapatalk
    ...Dilettante! Who you calling a Dilettante?

  4. #4

    Join Date
    Mar 2004
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    San Francisco Bay Area
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    Re: Tray Rocker

    Interesting. It looks consistent, which is the aim. Is the single axis motion enough for developing?

  5. #5

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    Sep 2023
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    Re: Tray Rocker

    I have not actually used it yet to develop a print, however on speed setting 4 or 5 the motion of the liquid and the movement of the print seem fine.

    I plan to test it tomorrow as I coated a number of sheets of paper.

  6. #6

    Join Date
    Feb 2017
    Posts
    103

    Re: Tray Rocker

    Quote Originally Posted by Beevo View Post
    aka Mechanical Darkroom Assistant....

    I must have too much free time on my hands and sat down and designed this device. Parts are 3D printed from PETG and it uses a NEMA 11 stepper motor and a cheap Stepper Controller that allows changing speed and Run/Stop via an Infrared Hand Control

    https://www.youtube.com/watch?v=_xUJYRUlezo
    Good job, could that set up be adapted to make a remote shutter release?

  7. #7

    Join Date
    Dec 2014
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    Big Canoe, GA
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    1,194

    Re: Tray Rocker

    Good nick name for photo lab tech. Might need a t-shirt
    The magic you are looking for is in the work you are avoiding.
    http://www.searing.photography

  8. #8

    Join Date
    Dec 2014
    Location
    Iowa City, Iowa
    Posts
    1,796

    Re: Tray Rocker

    Very nice. I have a couple lab orbital like shakers I think were designed for blood work. I like your device!!!

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