{"id":1929,"date":"2020-05-18T11:18:21","date_gmt":"2020-05-18T11:18:21","guid":{"rendered":"https:\/\/www.sabulo.com\/sb\/?p=1929"},"modified":"2020-05-18T11:18:23","modified_gmt":"2020-05-18T11:18:23","slug":"documentation-images-for-the-kotokino-mark-iv-scanner","status":"publish","type":"post","link":"https:\/\/www.sabulo.com\/sb\/8mm-film\/documentation-images-for-the-kotokino-mark-iv-scanner\/","title":{"rendered":"Documentation images for the Kotokino Mark IV scanner"},"content":{"rendered":"\n

I was asked to provide more detailed images of the Kotokino Mark IV telecine machine, so I shot a dozen more. <\/p>\n\n\n\n

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General setup. The lamp is housed inside the box, which is built out of floor laminate, with 3D printed corners. The camera is a placeholder for my usual Canon 1000D.<\/figcaption><\/figure>\n\n\n\n
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Other view showing the film takeup spool and the servos, one for the spool, and one for the film gate rotation.<\/figcaption><\/figure>\n\n\n\n
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Top view showing the relative layout of the parts. Note the gray assembly that allows three axis movement for the film gate switch.<\/figcaption><\/figure>\n\n\n\n
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Film entry side of the device. The film trough is printed to have just an adequate light aperture to allow for frame capture but no leakage of light.<\/figcaption><\/figure>\n\n\n\n
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Film trough with a frame visible, illuminated from below.<\/figcaption><\/figure>\n\n\n\n
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Closeup of the camera tower assembly with the adjustment screws visible.<\/figcaption><\/figure>\n\n\n\n
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Power management with 12V\/ 2A going in, and then four buck down regulators splitting it into 5V for Arduino, 6V for servos, 8.7V for camera and 12V for light.<\/figcaption><\/figure>\n\n\n\n
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Arduino on the right, four switches for each of the constituent parts, and the buck downs in a single element. The potentiometer is for adjusting takeup spool speed and turning it the other way when rewinding. <\/figcaption><\/figure>\n\n\n\n
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Takeup spool is located after the film gate. The film movement is governed by the film gate, which can be moved to allow for frame adjustment under the camera. <\/figcaption><\/figure>\n\n\n\n
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Closeup of the film gate switch, which closes the circuit to trigger the camera when a frame is in place.<\/figcaption><\/figure>\n\n\n\n
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The film gate switch is closed in this image.<\/figcaption><\/figure>\n\n\n\n
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The salvaged film gate from a ruined Bolex D8 is the heart of the entire telecine machine. You can se ethe film advance pin close to the blue shrink tube which holds the switch actuator rod.<\/figcaption><\/figure>\n\n\n\n
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Closeup of the power delivery box, the Arduino Nano on the left.<\/figcaption><\/figure>\n\n\n\n
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Arduino Nano<\/figcaption><\/figure>\n\n\n\n
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The lamp inside the housing. <\/figcaption><\/figure>\n\n\n\n

So, this set of images is mainly for the benefit of those who may want to build a similar setup. If you have any more questions, just drop me a comment.<\/p>\n

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I was asked to provide more detailed images of the Kotokino Mark IV telecine machine, so I shot a dozen … More Documentation images for the Kotokino Mark IV scanner<\/span> →<\/span><\/a><\/p>\n

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