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Author Topic: Scratching....Help! Daryl C. W. O'Shea Film God Posts: 3977 From: Midland Ontario Canada (where Panavision & IMAX lenses come from) Registered: Jun 2002 posted 08-05-2007 03:57 PM                        Are the scratches getting worse (more) every time you run the print, or are they staying the same. If there's no change in the amount of scratching I'd be extremely surprised if it wasn't that someone threaded the print up with the film sitting on one of the roller flanges on the platter tree (with the film running right against the platter tree while riding on top of the roller flange). This will give you the diagonal scratches you describe in the exact location that you describe if you're running with soundtrack away from the platter tree.  |  IP: Logged Thomas Moore Film Handler Posts: 56 From: Imperial, Mo USA Registered: Oct 2005 posted 08-06-2007 01:08 PM                        The scratches do get worse first off. The decks in that particular system are not warped and the roller is high enough to prevent any dragging of the film on take up like Brad suggested. Im going with the aged roller theory. I will quadruple check today, however I didnt really notice any visual or defects upon feeling the damn things. However I would assume that is really all there is left.  |  IP: Logged Jeremy Weigel Phenomenal Film Handler Posts: 1062 From: Edmond, OK, USA Registered: Mar 2007 posted 08-06-2007 01:26 PM                     Check all the axle pins on the film guides to see if any of them have come loose and/or bent causing a slight wobble which could allow the film to momentarily ride up on the guide flange. I had this happen a few years back on a Strong platter. I kept getting those hash marks and couldn't see anything wrong until I happened to walk by it doing rounds and actually saw the film ride up on to the guide flange and then slip back in. After tightened the screw that holds axle pin to the swivel I had no more problems.  |  IP: Logged David Zylstra Master Film Handler Posts: 432 From: Novi, MI, USA Registered: Mar 2007 posted 08-06-2007 07:14 PM                     After you rule out roller alignment . . . . Take a good look at the feed plate(s) - the CFS ESP feed plates went through a few changes while they were figuring out how to make it work and you want to be sure everything is still working the way it should (the company I used to work for installed some of the first of these units back in 1997 - we regretted the decision for years, great concept for the feed plate but not enough of a product run to work out all the reliability issues). Try making up a small ring of old unscratched previews - run it a few times using only 1 of the 2 feed plates (if you have 2 operational feed plates for this platter), if no scratches appear use the other feed plate . . . . . if scratches appear right away start over with another ring and the other feed plate . . . . if you only have 1 feed plate for this platter pull one from another unit to test with . . . . . this will at least rule out an issue with the feed plate.  |  IP: Logged Thomas Moore Film Handler Posts: 56 From: Imperial, Mo USA Registered: Oct 2005 posted 08-07-2007 12:04 AM                        Man this is becoming a serious headache! Im thinking of running the idea of getting 12 new rollers by the theatre owner. Anyone know off the top of their head how much they cost? wont find the exact culprit but at least Ill have all new rollers and hope that was the problem.  |  IP: Logged Jeremy Weigel Phenomenal Film Handler Posts: 1062 From: Edmond, OK, USA Registered: Mar 2007 posted 08-07-2007 12:29 AM                     Before doing that take some pics of the entire film path for us to look at like Brad suggested above. We might see something that you're not. The "fresh" eyes approach.  |  IP: Logged Troy Hilsman Powell Film Handler Posts: 30 From: Jacksonville,FL Registered: May 2007 posted 08-07-2007 12:52 AM                     I had that happen to me once and finally found it to be a nick on the edge of the platter disk from someone running by with a film splicer in a hurry to fix a break in the middle of a show.Liked to have never found the problem but I just buffed the nick away with some emery cloth,problem solved.  |  IP: Logged Christopher Meredith Expert Film Handler Posts: 126 From: Jackson, MS, USA Registered: Apr 2006 posted 08-07-2007 12:34 PM                        If he's taking up sountrack up, then it cannot be platter scratches as they are occurring on the base side. My money's on roller flange.  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 08-07-2007 08:55 PM                     Wrong Christopher. Assuming he is taking up the film soundtrack edge up (as every professional platter projectionist should be), that would put the base side of the film against the platter and cause scratches on the right projected edge of the screen...just like he claimed is happening. People who takeup soundtrack down are putting the emulsion against the platter as well as the brain if there is any startup or slight wrap during the movie, plus aggravating the curl of the film causing the focus to be less stable.  |  IP: Logged Christopher Meredith Expert Film Handler Posts: 126 From: Jackson, MS, USA Registered: Apr 2006 posted 08-09-2007 11:26 AM                        Sorry, my mistake. I got things backwards in my head as I was typing.  |  IP: Logged Thomas Moore Film Handler Posts: 56 From: Imperial, Mo USA Registered: Oct 2005 posted 08-09-2007 08:04 PM                        I should have those pics up by tomorrow afternoon. Thanks for everyones input on this!  |  IP: Logged Thomas Moore Film Handler Posts: 56 From: Imperial, Mo USA Registered: Oct 2005 posted 08-11-2007 09:30 PM                        2 things Ive heard conflicting stories on. The pad rollers in the projector head of the simplex 35...are they actually suppose to roll...and is there suppose to be minimal if any horizontal movement, back and forth type movement? Ive talked to 2 guys locally in St Louis and I got 2 different stories. Thanks and I will have the pics up tomorrow.  |  IP: Logged Dominic Espinosa Phenomenal Film Handler Posts: 1172 From: California, U.S.A. Registered: Jan 2004 posted 08-19-2007 12:52 PM                     Pad rollers don't generally roll, no. You might find on your lower hold-back sprocket that the film tends to "kick" the first one just slightly when the loop is at it's smallest point. That I find is somewhat normal. Otherwise the pad rollers should only show movement, and very little at that, when a splice rolls through. This assumes they are clean and spin freely as well as aligned laterally and not binding on the sprockets when the clearance is about 2 film thicknesses.  |  IP: Logged

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