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Author Topic: Strong Platter Rattle William Leland III Master Film Handler Posts: 336 From: Charleston, SC, Registered: Aug 2002 posted 10-16-2002 02:33 PM                        --"The reason the noise goes away after 10 minutes is because there is enough film on the deck to act as a cushioner."-- brad , how would film act as a cushioner? im taking u mean between the bottem of the ring and bottom of the platter, where u have put tape?? i this correct? i still think it is the weigh of the film. i don't see how a ring would vibrate the hole enite platter. if platter is light, movement will cause vibration.  |  IP: Logged Paul G. Thompson The Weenie Man Posts: 4718 From: Mount Vernon WA USA Registered: Nov 2000 posted 10-16-2002 03:05 PM                     Some of the rattling of the strong platters is due to the dish banging on the outriggers. CFS used little cork shims that were wedged between the outriggers and the dish. If the rattles are coming from the outrigger/platter dish of the A-3's, stuff a thin felt shim between the two.  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 10-16-2002 05:07 PM                     Without having a bunch of scientific experiments to back this theory up... Take an empty center ring and semi-drop it onto a platter and notice how it rattles loudly. Now do the same with a ring that has 10 minutes worth of film on it with the tail taped down. It doesn't make that much noise. Basically the film adds to the weight of the ring so it can't shake around when the platter is in motion.  |  IP: Logged Joe Redifer You need a beating today Posts: 12859 From: Denver, Colorado Registered: May 99 posted 10-16-2002 06:14 PM                        Brad, I am going to jump on the bandwagon of many of the other posters in this thread and ignore the fact that you have solved this problem. Instead, I will tell you how the rattle must be something else even though you have found a perfectly acceptable way of stopping it. Next time I post I will begin spelling "you" as simply "u". u have been warned.  |  IP: Logged Steve Kraus Film God Posts: 4094 From: Chicago, IL, USA Registered: May 2000 posted 10-16-2002 11:51 PM                    What's surprising is that a nearly empty Strong/Potts platter doesn't make more noise than it does. That large disk of sheet metal is a perfect sound radiator, restrained only by the frame members underneath, unlike the other brands with double wall honeycomb construction.  |  IP: Logged Shaun Flichel Film Handler Posts: 42 From: Regina, Sask., Canada Registered: Sep 2002 posted 10-17-2002 01:34 AM                     I tried the tape theory, its not the case in these theatres here, but instead of using those felt washers, I just folded a few frames of film and stuffed them under the deck, that worked.  |  IP: Logged Paul G. Thompson The Weenie Man Posts: 4718 From: Mount Vernon WA USA Registered: Nov 2000 posted 10-17-2002 02:14 AM                     That'll work. But the little felt pads with super glue would look nicer, and last longer. I even stuffed matchbook covers in mine, they seem to work. Actually, most anything will work.  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 10-17-2002 02:30 AM                     I don't know Sean. I only have access to play with SCDCs at present and the gaffer's tape worked. Did you use actual gaffer's tape, or something else? I would tend to stay away from actual "duct tape" as it would most certainly leave a nasty residue. Whatever works.  |  IP: Logged

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