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Author Topic: Platter question
Sally Ann Burgess
Expert Film Handler

Posts: 120
From: Queenstown, New Zealand
Registered: Apr 2008


 - posted 09-05-2008 04:01 AM      Profile for Sally Ann Burgess   Email Sally Ann Burgess   Send New Private Message       Edit/Delete Post 
This happened a long time ago, but I just want to know exactly what caused this situation. Back in ye olde training days, my Tech and I went to check on Analyse This (told you it was a long time ago)...and the first 20 mins or so were just feeding out onto the floor. The projector, a Vic 5, was still going, the platters were Cinemeccanica. My Tech did something, I think manipulate the take up arm, and the film just went onto the platter like that for a while until it was all back on the platter and going along normally. It's almost as if the take up arm itself got stuck but the take up platter stopped for some reason. What happened? Is this something that could ever happen to any projector set up? I now use Kinoton FP30s and AW3 platters.

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Joe Redifer
You need a beating today

Posts: 12859
From: Denver, Colorado
Registered: May 99


 - posted 09-05-2008 04:07 AM      Profile for Joe Redifer   Author's Homepage   Email Joe Redifer   Send New Private Message       Edit/Delete Post 
You don't say what type of platter this happened on, only what you use now, but I am guessing they were Christie platters. Your platters are/were poorly timed or had a bad LED and did not spin fast enough when the show started. I imagine the show started with a timer on the automation. I used to have this happen all of the time until I fixed the timing on the platter (varies by deck). The failsafes should have stopped the show, but I am guessing your failsafes are those crappy FP-350 optical failsafes. This brand of failsafes will not catch this problem since the film will never drop from where the optics are looking. Very poorly designed.

Also, you might want to edit the thread title to be more descriptive.

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John Wilson
Film God

Posts: 5438
From: Sydney, Australia.
Registered: Dec 1999


 - posted 09-05-2008 05:05 AM      Profile for John Wilson   Email John Wilson   Send New Private Message       Edit/Delete Post 
quote: Sally Ann Burgess
the platters were Cinemeccanica.

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Cameron Glendinning
Jedi Master Film Handler

Posts: 845
From: West Ryde, Sydney, NSW Australia
Registered: Dec 2005


 - posted 09-05-2008 06:00 AM      Profile for Cameron Glendinning   Email Cameron Glendinning   Send New Private Message       Edit/Delete Post 
What your describing Sally could have been caused by a multitude of different things. Equipment failure, operator error etc. We will never know exactly what caused your incident years ago. The only thing for sure is that when the film hits the ground the print is going to be dirty as film is statically charged. This will be seen every time the print is run from then on unless someone has a bottle of filmguard on hand.

Over the past 20 years I have worked in over 50 cinemas and worked with most projectors, platters, 2 projectors with change overs (thankfully never christie!) and all I can say is no system is 100% foolproof. Film can end up on the floor, worse still back up and get crushed in the projector (not likely with kinoton or cinemaccanica)

Parts wear out, motors need maintainence, bearings need to be replaced and some platters need to be timed and sometimes humans make errors or electricity fluctuations can be an issue.

The best thing you can do is have an experienced operator on hand (ie on staff) for when the **** hits the fan you can get a better point of view.

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Demetris Thoupis
Phenomenal Film Handler

Posts: 1240
From: Aradippou, Larnaca, Cyprus
Registered: Apr 2001


 - posted 09-05-2008 07:25 AM      Profile for Demetris Thoupis   Email Demetris Thoupis   Send New Private Message       Edit/Delete Post 
In case you did not pull the take up arm to the point of "standby" and left it to the full stop position, then the platter most probably never started spinning! If you also did not have the failsafe connection from the platter to the projector, then nothing could have indicated that there was something wrong. Actually Cinemeccanica and Kinoton offer the most failsafe platters and projectors. They stop at almost any error. Kinoton will stop at brain wraps and of course fillbreaks. Cinemeccanica will stop at brain wraps, film breaks, xenon lamp non ignition! And 20 minutes without checking on the projector is surely film done wrong!
Demetris

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Joe Redifer
You need a beating today

Posts: 12859
From: Denver, Colorado
Registered: May 99


 - posted 09-05-2008 10:40 AM      Profile for Joe Redifer   Author's Homepage   Email Joe Redifer   Send New Private Message       Edit/Delete Post 
quote: John Wilson
the platters were Cinemeccanica.
Ah! I usually ignore that word due to the fact it's not very impressive (unless she did a stealth edit after I posted).

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