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Author Topic: Best Position For Keeper Rollers Ian Bailey Master Film Handler Posts: 317 From: Nambucca Heads, Australia Registered: Jun 2003 posted 04-06-2005 01:18 AM                     What is the Best position for the keeper roller relative to the film direction.Is it on the leading edge of the large roller,the trailing edge or the apex of the bend as the film goes around the large roller.This is in regard to any roller in the film path that has a keeper roller. Should the film ever touch the keeper roller?  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 04-06-2005 02:09 AM                     Hi again Ian - I always use the apex usage: roller at the peak of the film bend. This way the film has no reason to touch the keeper roller, in which answers your second question: keepers never touch the film. Their task to help "keep" the film on the roller. thx-Monte  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 04-06-2005 09:01 AM                     As close as you can get the keeper to the beginning of the film wrap around the roller. Otherwise if the film is bouncing and the roller is not pulling the film over it directly horizontal, you risk having the bounce pop the film out of the roller, much in the same way that most people slide the film into the roller (in between the roller and keeper) when threading, only in reverse.  |  IP: Logged Randy Stankey Film God Posts: 6539 From: Erie, Pennsylvania Registered: Jun 99 posted 04-06-2005 11:51 AM                     I always put them at the tangent point where the film meets the roller. I set the depth so that the keeper goes half way down between the flanges. That allows you to easily slip the film down between the keeper and the roller when you thread but makes it difficult for the film to accidentally slip off the roller while it's rolling. Obviously, this is only a starting point. I make adjustments from that point so that the film runs smoothly without buckling, scratching or touching anything it shouldn't. No two roller setups are exactly alike. Once I get the rollers set the way I want I always get some old trailers and run them through the system to be sure that the film is running smoothly before releasing them for general use.  |  IP: Logged

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