S35R take-up clutch

Feel free to discuss any topic related to the Mitchell Camera. Both 35 mm and 16 mm models are welcomed here. Also consider posting topics of other major motion picture cameras that you feel are important to the development of the Mitchell Camera.

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Emiel de Jong
Posts: 1
Joined: Mon Jun 13, 2016 12:20 am

S35R take-up clutch

Postby Emiel de Jong » Mon Jun 13, 2016 12:43 am

I am trying to get a S35R ready for a short test: all seems fine except for the take-up tension on the film: it was pulled with way too much force out of the camera. The friction disc assembly, visible when you open the door for the inverted magazine at the back of the camera, was really dirty, so I cleaned it. After that I tried it dry: probably that is not how it was meant to work: when you adjust the thumbscrew either the slip clutch does not engage at all, or it sticks. I am reluctant to just start to put any oil or grease on it. I asked about this on cinematography.com and that raised a new question: if the magazine belt was not meant to be functioning as slip clutch. So: if someone can tell me how the take-up of the S35R is supposed to be functioning, and maybe what lubrication is needed on those friction discs, I will be very grateful...

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