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Topic: eumig s938 question
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Paul Adsett
Film God
Posts: 5003
From: USA
Registered: Jun 2003
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posted August 13, 2014 11:12 PM
Brad, you are thinking of the Eumig 926, which has no upper feed sprocket (and those awful coaxial reels). The 938 has a 'proper' film path with sprockets above and below the gate, so the supply reel should be totally isolated from the claw. I really would try adjusting the outer edge guide first. I had the same vertical jitter on my 938, I adjusted the edge guide a little, and all films have been rock steady ever since.
-------------------- The best of all worlds- 8mm, super 8mm, 9.5mm, and HD Digital Projection, Elmo GS1200 f1.0 2-blade Eumig S938 Stereo f1.0 Ektar Panasonic PT-AE4000U digital pj
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Andrew Woodcock
Film God
Posts: 7477
From: Manchester Uk
Registered: Aug 2012
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posted August 14, 2014 06:56 AM
Kevin, if you do decide to have a go yourself, follow Paul's sound advice first and only then adjust the claw if you feel it is definitely the root cause of the problem.
Also try lubricating the nylon cam first with Dow Corning Molycote grease (see Van Eck website) before just diving in on the shutter claw adjustment.
Also don't overlook the most obvious point on these machines in that the pressure plate can move in or out on them by loosening then re-tightening the red plastic retainer as it has an elongated slot in order to adjust. Try adjusting this first if you haven't already.
Generally, I find you can actually see it if it is a claw penetration problem by using the inch knob and looking very very closely at the action of the claw throughout one complete cycle.
As Barry advises, John, I believe is excellent on the mechanical side of things, so of course, that would be your best bet if you do not feel confident enough to solve the issue yourself. [ August 14, 2014, 10:12 AM: Message edited by: Andrew Woodcock ]
-------------------- "C'mon Baggy..Get with the beat"
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Paul Adsett
Film God
Posts: 5003
From: USA
Registered: Jun 2003
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posted August 14, 2014 12:49 PM
Well Andrew has hit on the most obvious first thing to check, which I completely overlooked, namely make sure the gate is closed! The reason being, as I have found, is that it is easy on this projector to think you have closed the gate, when in fact you have not. Sometimes, if you are not careful, the front part of the gate does not click fully in place behind the red plastic latch, or sometimes you just plain forget to close it and go ahead and remount the lamphouse cover. As Andrew points out, this red latch is adjustable foe and aft to provide some control of the gate pressure on the film.
-------------------- The best of all worlds- 8mm, super 8mm, 9.5mm, and HD Digital Projection, Elmo GS1200 f1.0 2-blade Eumig S938 Stereo f1.0 Ektar Panasonic PT-AE4000U digital pj
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