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This topic comprises 4 pages: 1 2 3 4
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Author
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Topic: Christie platters vs. Strong/Potts platters
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Paul G. Thompson
The Weenie Man

Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000
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posted 09-18-2001 11:43 PM
I don't like Christie crap. Too much electronics. Nor do I like the Strong platters if they come equipped with those foolish linear pay-out heads. The micro conversions for them made that machine alot more reliable, providing they are the soft spring microswitches. In one of our theaters (a six-plex) that was new, I installed 6 new Strong platters with these nice smooth pay-outs. Every payout head failed in a span of about about 2 years. I converted them to Microswitches, and had no problems for the remaining time with the exception of that funky mode selector switch Strong used. (Lost 3 of them.) I have two linear feed pay-out heads that just recently took a dump right in the middle of a movie on two separate machines. One was so weak, I contemplated powering up the pay-out with the MUT. That head was then taken out of service. The other one ran OK when I hung a big heavy staple gun on the dancer. At the end of that run, Likewise, I took the Pay-out head out of service.
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Will Kutler
Phenomenal Film Handler

Posts: 1506
From: Tucson, AZ, USA
Registered: Feb 2001
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posted 09-19-2001 12:03 AM
These are recommendations that I have for Christie:Take notice of the older platters that used roller bearings on the rollers! I personally like metal rollers over the nylon/plastic! Much easier to clean plus aids in eliminating static electricity! The plastic/nylon roller swivels can and will crack! Platter design is excellent high quality. But the spin forming can be much cleaner! What about painting the platter surfaces with a electric conducting paint or hard anodizing? Loose the print clamps that do nothing but scratch surfaces! Replace brush motors with brushless sealed can motors--expensive but worth it! Take up tension arms need a few locating pins or a machined dove tail assembly--the bolts tend to loosen up causing arm to droop. The take up cluster needs improvement. Bolts that hold roller swivel to carrage tend to loosen up causing rollers to drop down and possible film rubbing on platter surface. Platter lights are almost useless--need more wattage! Need to redesign and beef up MUT! Use pinch rollers on take off because print will/can jump off rollers if there is any slack. Redesign pay-out heads!
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Freddie Dobbs
Expert Film Handler

Posts: 115
From: Pinson, AL, USA
Registered: Jun 2001
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posted 09-19-2001 02:00 PM
Richard,I will, had lunch with him 2 days ago cought up on some old times. As far as the platter trick goes, I just could not help myself.. Ken, Does Jerry do your service?
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Will Kutler
Phenomenal Film Handler

Posts: 1506
From: Tucson, AZ, USA
Registered: Feb 2001
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posted 09-19-2001 03:29 PM
Hi Brad!Actually the platters at where I worked were in excellent condition and the booth was spotless! Many of the things I listed are from an engineering standpoint. Overall, I think that this machine is ok. But there are many differences between the way goods are made now--and the way they were made decades ago! Keep in mind that todays products are made with a design obselences, and that we are a throw a way society! Products need to be made cheaply and quickly for companies to survive!
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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99
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posted 09-19-2001 04:04 PM
In response to Will's comments...Take notice of the older platters that used roller bearings on the rollers! No need to. Platters that use bearing in their rollers tend to have issues with the film flying off (not talking about Strongs here since they have thick flanges) and they like to overspin and dump film onto the floor if the projector to platter distance is too great. I personally like metal rollers over the nylon/plastic! Much easier to clean plus aids in eliminating static electricity! Clean? I've ran the same sets of platters for stretches of years and have never had the need to clean them. If you keep your prints clean, the rollers will stay clean. Pretty simple. Also, I think Kodak's work on anti-static coatings go far beyond the benefits that metal rollers provide. The plastic/nylon roller swivels can and will crack! Really? I've never seen one crack. Again, this sounds like operator abuse. Platter design is excellent high quality. But the spin forming can be much cleaner! What about painting the platter surfaces with a electric conducting paint or hard anodizing? I have no problems with the current platter deck. This seems more of an opinion than anything else. Loose the print clamps that do nothing but scratch surfaces! Well duh! I'll certainly agree with you there. Print clamps shouldn't even be in a booth unless prints have to be carried down stairways. Even then, they aren't required. There are better ways to move prints. Replace brush motors with brushless sealed can motors--expensive but worth it! Again, I've not had a problem. Just how long did you work for this theater that had motor problems? How long were they open before you started working there? The benefits are not worth the added expense. Take up tension arms need a few locating pins or a machined dove tail assembly--the bolts tend to loosen up causing arm to droop. Ever heard of a lock washer? Again, I've not had this problem. The take up cluster needs improvement. Bolts that hold roller swivel to carrage tend to loosen up causing rollers to drop down and possible film rubbing on platter surface. There should have been a nut on the other side of the bolt, but if for some reason that's not enough for your needs, there's always that lock washer. Also, the tall metal rail that holds the takeup cluster has two bolts that can be loosened and the entire rail raised or lowered. Platter lights are almost useless--need more wattage! Take the cover off. I have good night vision and have no problem with them the way they come out of the factory, but I can see where some people might want more light. Need to redesign and beef up MUT! No they don't. The classic MK makeup table is the best design out there. What is the problem? It doesn't rip film on and off of the platter fast enough for you? The day Christie stops selling their standard MUTs, I will stop recommending and installing their platters. Use pinch rollers on take off because print will/can jump off rollers if there is any slack. You are kidding me, right? I've not had this problem. Again, this sounds like an operator error. Those rollers can be threaded with a huge loop of slack between the two outer rollers and the film will STILL run just fine and dandy. Redesign pay-out heads! NO! They are perfect as they are. No other payout head is as easy to thread, un-thread, and the slight bend of the film required to enter the head helps to split layers of film in static conditions. Your booth may have been waxed, buffed and overall spotless, but there's something else going on. Someone in that booth has abused those platters without damaging the cosmetics of them, or you have had a tinkerer. The AW3 has been in use for a damned long time. If these problems were commonplace, Christie would have had to redesign it a long time ago. As it stands, it is the most popular platter on the market and is the benchmark for comparison to all others.
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Will Kutler
Phenomenal Film Handler

Posts: 1506
From: Tucson, AZ, USA
Registered: Feb 2001
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posted 09-19-2001 05:00 PM
Damn Brad!Whats eatin' you--you really want to argue--HA HA! OK Before I started working at this theater, some yutz used lubriplate to lube the pay-out heads and roller shafts! What a mess this made! I ended up cleaning all of this crap off (what a pain!) and relubed with clear silicon bicycle chain lube. Much cleaner and better! But the payout rollers still dont roll worth a damn--and they love to squeek! Constantly cleaning these is a royal pain! I have seen roller bearings in action with the wider flange rollers and I like them much better! As for the motors: The brush caps need to be removed at least every 6 months to blow carbon dust out to prevent the motor from possibly shorting! Another pain in the ass! Christie uses those FASCO motors that have cast composite magnets and not stacked steel ones. On one occasion, I went to blow the motor out only to find that the magnet was cracked/defective and blew fragments up into the communitator/rotor! Had to replace motor! Can motors are more precise and much better! What about that bad lot of hockey pucks that Christie purchased and ended up having to replace!? Do you know what spin forming is!? Look at how the bottom portion of the platter deck is formed--an amature can do better work! And yes, I have spun formed parts before! Payout heads: Heaven help you if for some reason all three rollers do not roll evenly! The nylon fingers are a pain to clean and form flat spots over time because they do not rotate. If there is any film slack between the payout head and the tree rollers, the film can and will come off of the roller and possibly ride on roller flanges causing scratches. Thats why I recommended pinch rollers! I was in the habit of inspecting all 10 machines 2-3 times during each show to make sure that the film was tracking correctly! The mut legs, roller brackets and post can surely be beefed up! I got used to retightening hardware in certain places--even though correct locking hardware was used--just the design construction of the part! This is overall a good product that is easy to thread--but can use some quality improvements.
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Paul G. Thompson
The Weenie Man

Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000
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posted 09-19-2001 09:58 PM
Will, you said that correctly about the rollers liking to squeek. I just made a walk through a ChristieShitty booth today: And ALL of those rollers were squeeking like hell. Maybe a gallon of Film-Guard might fix that if you dump it in the shafts.This was a complete Christie booth. Projectors, soundheads, platters, make-up tables, commodes, you name it. I'll have to bone up on this crap. Looks like I am going to be the dude to keep it running.
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