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Thread: Need Packard shutter solenoid mod

  1. #21
    Tin Can's Avatar
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    Re: Need Packard shutter solenoid mod

    Still working on this.

    Using RC servos I have very reliable 1/2 second shutter speed with adjustable flash sync.

    I was hoping for faster, but not happening with this setup. however the flash will freeze motion, obviously...

    I will install it and use it for studio work.

  2. #22

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    Re: Need Packard shutter solenoid mod

    If you want cheaper parts, how about a stepper motor?

    -------------------------------------------------------------------------
    My stepper motor website:skysmotor.com - Machinery Design ? - ? Stepper Moter Development

    "Necessity is the mother of invention." - Author unknown.

  3. #23
    (Shrek)
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    Re: Need Packard shutter solenoid mod

    It's occurred to me recently that old-style doorbells have an appropriate-size solenoid with spring return that would be strong enough for smaller Packards. They're made to run on 24VAC or DC, but they could tolerate a 48V spike or whatever is necessary to quickly open the Packard, then would hold in the 12-24V range as discussed in this thread.

    Edit: old school chimes actually run on 16V AC/DC, not 24. Well they will run on 24, or 12 for that matter, but the rated voltage is 16.
    Last edited by Jody_S; 13-Nov-2019 at 10:44.

  4. #24
    Tin Can's Avatar
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    Re: Need Packard shutter solenoid mod

    RC servos are stepper motors, thanks for the link


    Quote Originally Posted by Melinda View Post
    If you want cheaper parts, how about a stepper motor?

    -------------------------------------------------------------------------
    My stepper motor website:skysmotor.com - Machinery Design ? - ? Stepper Moter Development

    "Necessity is the mother of invention." - Author unknown.
    sin eater

  5. #25
    Tin Can's Avatar
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    Re: Need Packard shutter solenoid mod

    Good idea, even found one, Morris Products Home Door Bell 4 Inch DoorBell, 2.2 Amps, 35 Watts


    Quote Originally Posted by Jody_S View Post
    It's occurred to me recently that old-style doorbells have an appropriate-size solenoid with spring return that would be strong enough for smaller Packards. They're made to run on 24VAC or DC, but they could tolerate a 48V spike or whatever is necessary to quickly open the Packard, then would hold in the 12-24V range as discussed in this thread.
    sin eater

  6. #26
    ic-racer's Avatar
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    Re: Need Packard shutter solenoid mod

    I build this intervalometer for my Bolex (after seeing Koyaanisqatsi) using only a servo and off-the-shelf servo 'tester.' This may give you ideas.


  7. #27
    Tin Can's Avatar
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    Re: Need Packard shutter solenoid mod

    Interesting, thanks!

    Here are some of my friends and their now closed and vastly delayed BOLEX KS


    Quote Originally Posted by ic-racer View Post
    I build this intervalometer for my Bolex (after seeing Koyaanisqatsi) using only a servo and off-the-shelf servo 'tester.' This may give you ideas.

    sin eater

  8. #28
    (Shrek)
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    Re: Need Packard shutter solenoid mod

    Quote Originally Posted by Tin Can View Post
    That's a buzzer. I was thinking more of this:

    Newhouse Hardware CHM1 Door Bell Chime, White

    There are in fact 2 solenoids inside, in a shared plastic housing. A hacksaw would quickly tun that into 1.


    You can buy the Nutone interior separately, for $7 more than the complete chime, but the photo shows the solenoids.

  9. #29
    Tin Can's Avatar
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    Re: Need Packard shutter solenoid mod

    Good and cheaper

    Thank you!

    Quote Originally Posted by Jody_S View Post
    That's a buzzer. I was thinking more of this:

    Newhouse Hardware CHM1 Door Bell Chime, White

    There are in fact 2 solenoids inside, in a shared plastic housing. A hacksaw would quickly tun that into 1.


    You can buy the Nutone interior separately, for $7 more than the complete chime, but the photo shows the solenoids.
    sin eater

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