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Author Topic: Film is pulling projector out of frame Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 12-21-2005 09:11 AM                        Dick & Mark have nearly said it all correctly. One add on: (I am assuming this is an old XL) the screws that hold on the blocks are too long to use with the spring clips, so cut down or replace the screws with the ones for the leaf springs. Sometimes 2 leaf springs isn't enough. Double up ONE of them. Also, when finished, be sure you still have full travel on the framer This is an inexpensvie fix. Congratulations of doing an excellent job! Louis  |  IP: Logged Dan Chilton Expert Film Handler Posts: 191 From: Springfield, MO Registered: Mar 2004 posted 12-21-2005 01:21 PM                        quote: Dan Chilton I'm on a Simplex XL, btw. And yes, it's an old one... curved gate. After speaking with my tech, he's positive it's the framing shaft friction disc washer (P-1752). According to him, they get worn down over the course of a few years, and should probably be changed every two years or so. I'll have to wait until tomorrow to pull the framing collar off so I can get a look inside, but until then I have a couple of vice grips attached to each end of the the framing shaft to hold it in place. If that doesn't end up being the case, I'll try some of the other suggestions listed here. As always, thanks a million for all the helpful comments!  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 12-21-2005 01:33 PM                     Don't ya just love these guys that think they are techs.... Time for your tech to go back to school or join us here on Film-Tech! That washer and the framing shaft have little to nothing to do with keeping the machine in frame. That part is merely the washer that holds the flat rubber shaft seal in place...... A properly tensioned intermittent carrage will hold frame without the framing shaft or gears in place at all. Good luck... you may need it ... or better yet repair it yourself. Mark  |  IP: Logged Gerard S. Cohen Jedi Master Film Handler Posts: 975 From: Forest Hills, NY, USA Registered: Sep 2001 posted 12-21-2005 02:52 PM                     I think we've established in Film-tech long ago that proper framing, (setting the intermittant, film loops, etc.) will remove the need to rack focus via the framing knob. Perhaps in the aforementioned booth there exists someone who habitually starts out of frame, racking focus so often as to loosen the assembly through premature wear?  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 12-21-2005 05:07 PM                     Gerard, You are absolutely correct! Excessive manhandling of framing mechanism wears that area on both of the clamping blocks and on the framing sector itself.... Have a happy Holiday! Mark  |  IP: Logged Randy Bowden Expert Film Handler Posts: 146 From: Portland, OR, USA Registered: Aug 2000 posted 12-21-2005 06:24 PM                     I Definitely agree with Mark, you do not need to replace the lower spring, just the upper. The problem you are having can also be a symptom of a gearbox just about to die, what happens is the upper gear gets worn down to the point that it is vibrating the machine out of frame (I have experienced this more than once) I just replaced an SH1000 gearbox last month with the same symptom of the framing drifting, when I arrived at the theatre there was no oil in the gearbox. If you do have a gearbox soundhead, check for excessive gear lash on the upper sprocket shaft, there should be very little. [ 12-22-2005, 12:14 PM: Message edited by: Randy Bowden ]  |  IP: Logged Andy Bergstrom Film Handler Posts: 44 From: St. Cloud, MN Registered: Feb 2000 posted 12-22-2005 09:31 AM                     Is there any chance of shutter compensator(?) damage by continuing to operate the projector with the intermittant moving or getting pounded out of frame?  |  IP: Logged Cory Isemann Jedi Master Film Handler Posts: 500 From: White Plains, MD, USA Registered: Jun 2004 posted 12-22-2005 10:48 AM                        Funny, Andy, I was going to inquire the same thing. It's a bad thing to operate the framing adjustment all the way in either direction for extended periods of time, correct?  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 12-22-2005 12:59 PM                     shutter units are pretty durable. Just have to watch out for that guide pin in the fibre gear to get bent with the sudden movement.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 12-22-2005 05:13 PM                     I agree that the X-L shutter compensator is a pretty durable unit but a part that few understand. The parts likely to receive alot of wear from excessive use of the framing mechanism however do include both the male and female spliens in the compensator..... as well as the intermittent framing sector carrage, the main frame bore for the framing sector, and the framing gears themselves. P.S. Monte: there is not a fibre gear in the compensator... the pin that couples to the steel gear is attached the female splein part. The pin generally bends from sudden stoppage of the entire mechanism or if someone suddenly stops the shutter. Its always best to know what you are doing and to do what you know. Mark  |  IP: Logged

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