This is topic Platter Timing in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.
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Posted by Tom Ferreira (Member # 70) on 08-07-2000, 07:41 AM:
I have CRC Super Platters(lucky me)-two five decks and two three decks. Any hints for keeping these things timed? They can be timed perfectly, but within a week, they're all screwed up again. Either the takeup is so slow, the carriage drops all the way down when starting the film, and drops the fail safe, or upon starting, the take up platter speeds up so much that the carriage slams up, crimping and/or breaking the leader. I really shouldn't have to run over to the platter to speed up or slow down the take up. Also, the adjustment is counter-clockwise faster, clockwise slower, isn't it?
One of these days, I'm going to take an axe to these platters, and well....
Posted by Ken Layton (Member # 133) on 08-07-2000, 08:28 AM:
Moving the motor closer to the deck slows the speed while moving the motor away from the deck increases speed.It sounds like you may need motor brushes or you might need to take the motor apart and clean the commutator. What's the condition of the drive tire?
Posted by Carl King (Member # 398) on 08-07-2000, 02:26 PM:
The positon of the drive wheel on the motor against the platter may need adjustment. The harder the rubber edge of the drive wheel is against the platter bottom the slower the platter will move. It's a trial and error procedure. Hint: Once the motor is positioned properly mark the platter post accordingly in case you need to remove the motor in the future.You may also need to remove the motor cover and clean the commutator. Unplug it first, eh. A bit of emery cloth is great for this purpose.
Posted by Gordon McLeod (Member # 33) on 08-07-2000, 04:51 PM:
Use fine sandpaper not emmery cloth as emmery cloth is very conductive if any is left behind afterwards