Scott, Did Kinoton ever implement this digital stepper design with their 16mm line? It would fascinating to watch the live manipulation of shutter phase if such a thing were possible. By that I mean varying the shutter relative to motion on the screen. Applying or decreasing (removing?) motion blur so to speak.
On Thu, Jul 31, 2014 at 9:54 AM, Scott Dorsey <[email protected]> wrote: > I don't think it would be a matter of modifying it but completely > redesigning it. > > You might want to look inside a Bolex camera to see an example of how a > variable shutter works. The Bolex has two sets of shutter leaves and a > gadget that pulls them apart as a ring is moved forward and back on the > shaft. This works well, but it's not a thing you could easily fabricate > into an existing projector. > > If I were doing it, I would toss the existing projector entirely and I > would build an electronic projector from the bottom up along the lines of > the Kinoton projectors. The Kinoton has stepper motors driving the two > sprockets and a stepper motor driving the shutter, and they are all > controlled by a small microcontroller. You could do something similar > using an existing junk projector chassis and add a second shutter. It > would be fairly easy for software in the microcontroller to change the > shutter phase. > > It would seem much easier to do this than to try and implement a variable > pitch shutter entirely mechanically, and it would also make speed control > a whole lot easier. > --scott > _______________________________________________ > FrameWorks mailing list > [email protected] > https://mailman-mail5.webfaction.com/listinfo/frameworks _______________________________________________ FrameWorks mailing list [email protected] https://mailman-mail5.webfaction.com/listinfo/frameworks
