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Author Topic: On a Simplex 1050, what's a solution for the film gate screws vibrating loose? Justin Hamaker Film God Posts: 2253 From: Lakeport, CA USA Registered: Jan 2004 posted 05-09-2008 03:08 AM                        I'm having to tighten the film gate screws on 2 houses after almost every show. Even with the gate closed, I would imagine this has to throw the focus off slightly. I've also had problems with the hex head screw that's just to the right of the film trap (if you were looking at it face on). In the past this screw has moved just enough that the gate will close too far and cause the pivot to lock. I've got the screw backed out enough to stop the pivot problem, but I've had difficulty getting the focus dialed in to my satisfaction. Any thoughts? [ 05-11-2008, 06:11 PM: Message edited by: Justin Hamaker ]  |  IP: Logged Fred Tucker Film Handler Posts: 90 From: Sugar Land, TX Registered: Sep 2007 posted 05-09-2008 06:03 AM                     Have you tried loc-tite? If you ever need to loosen it later-on acetone works great.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 05-09-2008 08:32 AM                     Definately Loc-Tite but ONLY use the blue "medium strength" stuff. If you use the red "High Strength" stuff it'll never come apart if you want it to! quote: Justin Hamaker Any thoughts? Yes! A Christie P-35GPS is the best solution. They don't fall apart whilst running. Mark  |  IP: Logged Tim Reed Better Projection Pays Posts: 5246 From: Northampton, PA Registered: Sep 1999 posted 05-09-2008 07:14 PM                       quote: Justin Hamaker I've got the screw backed out enough to stop the pivot problem, but I've had difficulty getting the focus dialed in to my satisfaction. Any thoughts? Do you mean the focus is drifting, or is it a lens focus ring issue?  |  IP: Logged Justin Hamaker Film God Posts: 2253 From: Lakeport, CA USA Registered: Jan 2004 posted 05-09-2008 08:20 PM                        quote: Tim Reed Do you mean the focus is drifting, or is it a lens focus ring issue? When I backed out that screw it changed the gap between the film gate and the film trap. I've tried messing with it and I either get it to tight and wind up getting wax all over the projector. Or it's too loose and the focus is soft. I don't think it's an issue with the lens. The best I can tell, the hex screw I'm talking about serves no other purpose than to control how far the film gate closes. [ 05-10-2008, 02:38 AM: Message edited by: Justin Hamaker ]  |  IP: Logged Tim Reed Better Projection Pays Posts: 5246 From: Northampton, PA Registered: Sep 1999 posted 05-09-2008 11:12 PM                       Oh, that's exactly its function. I adjust it so the intermittent pad shoe just contacts the sprocket, and just a little more. Not much more, though. You might have to go back and forth a couple times to get it just right, it's a trial and error thing.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 05-10-2008 01:45 AM                     Yea, it's called a "gate stop allen screw" and it's a PITA to get right - as Tim mentions.  |  IP: Logged Tristan Lane Master Film Handler Posts: 444 From: Nampa, Idaho Registered: Feb 2002 posted 05-10-2008 02:03 AM                     Isn't there supposed to be a jam-nut on the set-screw to keep it from vibrating loose? My recollection seems to be that there is.  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 05-10-2008 05:55 AM                        I think Tristan is right. Look in another projector or th emanual. Louis  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 05-10-2008 08:53 PM                     ..none of my 18, 1050's have that jam nut on that allen bolt..just that they are really snugged in their respective threaded holes real good.  |  IP: Logged James Westbrook Phenomenal Film Handler Posts: 1133 From: Lubbock, Texas, Usa Registered: Mar 2006 posted 05-11-2008 02:23 AM                     Same here. My 12 1050s are snug. Interestingly, I wasn't even aware of that screw even being there until this thread came up: We've been having one of our film traps "overextend" and require fiddling to get it situated right. Adjusting that screw fixed the problem.  |  IP: Logged Tristan Lane Master Film Handler Posts: 444 From: Nampa, Idaho Registered: Feb 2002 posted 05-11-2008 03:49 PM                     I probably thinking of the adjustment screw for the 1060 or Millennium projector. To be honest, I can't picture exactly which screw Justin is referring to. It seems he is talking about two different things in his original post.  |  IP: Logged Justin Hamaker Film God Posts: 2253 From: Lakeport, CA USA Registered: Jan 2004 posted 05-11-2008 06:15 PM                        quote: Tristan Lane It seems he is talking about two different things in his original post. Tristan, I am talking about two different things. The first is the large thumb screws that hold the film gate in place. These are intended to be easily removed for routine cleaning. The second is a black hex head screw that's behind the film trap. It controls how far the film gate can close.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 05-11-2008 06:52 PM                     quote: Justin Hamaker tighten the film gate screws on 2 houses after almost every show I'm sure that there is at least one of us that have to contend with this situation on a daily basis out there in "XL" land. Welcome to the group. Even when I ran a changeover house with XL's that I had to re-snug up the knurls between each reel change. There are times when I visit my locations with the 1050's that I find a knurl or two on the floor due, or at least all of them loose to the booth clowns not checking this small thing out when threading up projectors-and this is from telling them time after time to check this out when doing their thread-ups. -Monte  |  IP: Logged

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