From: Lisa Oppenheim (email suppressed)
Date: Sun Feb 22 2009 - 18:04:25 PST
Thanks so much everyone!
Lisa
On Feb 21, 2009, at 10:59 PM, Robert Schaller wrote:
> On 2/21/09 6:56 PM, "Rob Danielson" <email suppressed> wrote:
>
>> One can drive a Pageant projector with an external motor by extending
>> the threading knob shaft with a coupler and use Boston pulleys and a
>> belt.
>
>
> I've used a system built by Magnasync/Moviola that does exactly this:
> piggy-backs a second motor onto the back of a Pageant, and then
> these motors
> are wired together so that they only run at the same speed. Works
> great,
> and I've gotten a lot of use out of the system. It seems a little
> primitive
> and imprecise, though; it requires a bit of attention while running
> make
> sure that the loop doesn't lose a frame, but that's probably
> inevitable with
> film projectors. It also requires a massive "regenerator" to
> handle the
> start-up surge to stay in-sync if you are syncing more than three
> projectors. It seems to me that a more modern and elegant solution
> would be
> to replace the projector motors with stepper motors (or use them
> like the
> piggy-back motors?), and coordinate them with TCP/IP or MIDI. Has
> anyone
> out there done something like this? George Coates had a two-projector
> system in his San Francisco theater that had a sync controller by
> Thingm,
> running Bell and Howell projectors that had had their motors
> replaced with
> steppers, but I never got any information on how it worked or saw
> it in
> action...
>
>
> __________________________________________________________________
> For info on FrameWorks, contact Pip Chodorov at <email suppressed>.
>
__________________________________________________________________
For info on FrameWorks, contact Pip Chodorov at <email suppressed>.