Hi everyone — As of late I have been itching to use an optical printer for a film which must ultimately end up on the material itself. I have been looking into diving in and trying to make one in order to achieve certain effects like, for example, providing room for some sort of digital LCD harvested from a 3LCD projector, or using small complex objects as masks.
I’d like to use an “off-the-shelf” solution for the movement of the film being rephotographed by restructuring the layout of some sort of fairly simple silent speed projector. I understand that this is often done to build a digital transfer unit, but I am having a bit of trouble with the synchronization side — my worry is that stepper motors as well as a frame count gathered by those alone would be fairly unreliable and prone to difficulties on the side of the microcontrollers running ‘em. I was wondering if anyone knows of a writeup for this sort of project. I want to get a better feel of what is necessary for working with this sort of movement, preferably with an emphasis on how to approach the user interface side of things. I have not used a JK by interfacing with those computer-controller interfaces, but that sort of automated control seems like a great boon when functional. Thanks, Brandon
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