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Author Topic: Static and CNR Antonio Marcheselli Phenomenal Film Handler Posts: 1260 From: Florence, Italy Registered: Mar 2000 posted 12-24-2003 02:32 PM                        addendum: I have the new "N" version and I didn't know!!!... It doesn't seem to me that the platter spins slowly until the payout arm is in the maximum position for a "long" time... The time the platter approach the maximum is connected to the phisycal time the motor needs to bring the platter to the maximum speed!!! Perhaps older models does it worst! Bye A  |  IP: Logged Max Biela Film Handler Posts: 89 From: Dortmund, Germany Registered: Sep 2003 posted 12-24-2003 03:08 PM                     Hi Antonio! no, the older CNRs do exactly the same.. even the old ones with black platter decks.. it seems to me that he CNR platters are getting more bad with every "update" they get! The oldest version of it seems to be the best (with black platters and the take-up elevator): They are far more robust than the new CNRs, had a felt brake for brake down (the new platters are turning free) and the electronic platter-brake brakes the platter FROM THE SIDE and not from the bottom of the platter so that they don't need this long "finger". Does anybody know why cinemeccanica had changed the design? Max  |  IP: Logged Antonio Marcheselli Phenomenal Film Handler Posts: 1260 From: Florence, Italy Registered: Mar 2000 posted 12-24-2003 08:58 PM                        I had the brake for CNRs at my previous job, we throw them away replacing them with a stong pair of gloves... I was used to Kinotons, CNRs seemed toys to me the first time! I really believe that a new electronic control of the spin of the platter can made the CNRs MORE and MORE reliable and professionals. I know that Cinemeccanica is developing a new core for CNRs. Perhaps the version "Z" will have a decent design! John, Do you believe that stand-alone humidifiers can be enough for a booth? Each projector has its own fan that send the exhaust on the roof and the AC system does not recycle the air, just put it in and not take it out. So the air changes continuously. Do you believe that some hi-performance humifiers can be enough or we are just wasting our money? Bye A  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 12-29-2003 01:50 PM                        I agree that the conditioned air being sucked up the stack to cool the lamps can make it hard to keep the humidity in the ideal range of 50 to 60 percent RH. But each humidifier can add a few dozen liters of moisture to the air per day, which can really help, even if you don't get to 50%. Note the new MIT lamphouse would allow using air from an OUTSIDE source to cool the lamp, so there are ways to reduce the load.  |  IP: Logged Dick Vaughan Phenomenal Film Handler Posts: 1032 From: Bradford, West Yorkshire, UK Registered: Jul 2000 posted 12-29-2003 02:42 PM                        Wow Gordon, Drypur are still around. We tried the 35mm units out in the mid 80's with limited sucess and also tested them on our old Mk 1 IMAX reel units at the request of our friends at the plant in Oakville. The rollers must have been a good 4" across and a pair were mounted on the top deck plate just before the final feed to the projector. After about 10 shows we started to find traces of the orange silly putty sticking to the rotor so the test was abruptly terminated At that time of course the projector also had a discharge device and an air jet blowing ionised air back along the film just before it reached the input sprocket. Both devices were found to have limited effect and were removed about 1990.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 12-29-2003 03:25 PM                     The only problem I had with drypurr was don't let them make contact with fotoguarded prints that was a reactive big mess We still have the hv static bar and the vacume cleaner as well as 2 ptrs on the input We used the drypur on the 35/70 in theatre 1 to clean on rewind of our 3d 70 stuff used to get about 3000 passes per print on them also helped keep the dubber mag tracks clean  |  IP: Logged System Notices Forum Watchdog / Soup Nazi Posts: 215 Registered: Apr 2004 posted 10-07-2005 01:09 AM                 It has been 647 days since the last post.  |  IP: Logged Daryl C. W. O'Shea Film God Posts: 3977 From: Midland Ontario Canada (where Panavision & IMAX lenses come from) Registered: Jun 2002 posted 10-07-2005 01:09 AM                         |  IP: Logged

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