Rewind bench: Difference between revisions

Rewind bench (view source)

Revision as of 16:05, 19 May 2020

1,422 bytes added , 19 May 2020

Added section on alignment.

JesseCrooks

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 ===16mm===
 Spindles designed primarily for 16mm use shafts with a square base.  Most 16mm reels can be rewound using a 5/16” keyed shaft.
+==Alignment==
+Rewinds should be aligned so that films spools between them as evenly as possible. To test alignment, use two house reels that you know to be true (no wobble or bent flanges). Spool test film between them a number of times to make sure the film isn’t kissing against the flanges. Adjust the position of the rewinds as necessary.
+It was once common practice in projection booths and film exchanges to intentionally misalign rewinds so that the flange of the take-up reel would guide the film, ensuring a smooth wind. This should be avoided because it can damage the film, especially if there are any burrs on the flanges.
+However, even on a perfectly aligned rewind table, the lateral alignment of the film path will vary based on the style of reel or film transfer flange on which the film is mounted, with the inboard film edge offset from the back of the spindle by the depth of the flange. For example, an aluminum house reel has thicker flanges than a split reel, so the film on the house reel will be slightly further away from the back of the spindle than the film on the split reel. It is important to understand this bias when winding film between reels of different types. When spooling from a house reel to a split reel or shipping reel, the film may kiss against the outboard edge. When spooling from a split reel or shipping reel to a house reel, the film may kiss against the inboard edge.
 ==Best Practices==