8mm Forum: 2400ft Capacity GS1200...

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Topic: 2400ft Capacity GS1200...

Alan Rik
Film God

Posts: 2211
From: New York City, NY, USA
Registered: Jun 2003

posted January 05, 2006 02:38 PM

Wittner in Germany are preparing a mod to allow you to have 1600ft capacity on our Elmo GS1200's like the Fumeo and the Beaulieu. Here is the link. No prices as of yet but cool news!

http://www.wittner-kinotechnik.de/katalog/07_vorfu/b_elmo.php

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Jean-Marc Toussaint
Film God

Posts: 2392
From: France
Registered: Oct 2004

posted January 05, 2006 02:58 PM

Fumeo and Beaulieu have 2400 ft spool capacity . Looking at the pic, this is what they're trying to achieve on the GS. Cool. You just won't be able to fold the arms back. But for a permanent installation, I guess this is no problem.
I just wonder...
1 - how much it will costs?
2 - Will it be reversible?

Thanks for the link, Alan.

--------------------
The Grindcave Cinema Website

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Alan Rik
Film God

Posts: 2211
From: New York City, NY, USA
Registered: Jun 2003

posted January 05, 2006 04:03 PM

oops! I mean 2400ft Capacity!

[Smile]

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Eberhard Nuffer
Expert Film Handler

Posts: 141
From: Stuttgart, Germany
Registered: Jul 2005

posted January 05, 2006 06:01 PM

Sorry to correct once more. In fact 800m means 2666,66ft capacity...

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Alan Rik
Film God

Posts: 2211
From: New York City, NY, USA
Registered: Jun 2003

posted January 05, 2006 06:23 PM

Even Better! [Smile]

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Michael De Angelis
Phenomenal Film Handler

Posts: 1261
From: USA
Registered: Jul 2003

posted January 05, 2006 06:57 PM

Alan,

I know that Leon Norris makes the same conversion on GS1200 models here in the USA. Leon sent me picts of his conversion to his original GS, and Xenon GS, over 5 years ago. The conversion is not only in the arms, but in the power of the torque as well.

I was curious about Wittner's switch selectable 2>3>2 shutter blade conversion, which allows the operator to switch the shutter to the desired level of light output?

Michael

--------------------
Isn't it great that we can all communicate about this great
hobby that we love!

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Alan Rik
Film God

Posts: 2211
From: New York City, NY, USA
Registered: Jun 2003

posted January 05, 2006 08:19 PM

I remember seeing Leon's work as well. But by the looks of the Wittner conversion it looks like they manufactured longer arms. Because if my memory serves me correctly he had to get a couple of old arms and basically stack them one on top of the other. So it worked but it looked a little home brewed. The Wittner looks like it left the factory that way. At least the pictures look that way.
I dont think he did anything with the torque. I remember him telling me that the Series II machines had no problem handling the extra weight but that the older series one could not.
But Im not certain. It has been a long time!

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Jan Bister
Darth 8mm

Posts: 2629
From: Ohio, USA
Registered: Jan 2005

posted January 05, 2006 11:11 PM

--------------------
Call me Phoenix. *dusts off the ashes*

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Kevin Faulkner
Film God

Posts: 4071
From: Essex UK
Registered: Jun 2003

posted January 06, 2006 05:53 AM

Yes the series one machines have lower torque motors. I have to say that I would be very worried about the motors with such a large reel capacity. A lot of torque will be needed for a full reel and we mustnt forget that those motors are now unavailable. Maybe Wittners have a replacement motor for use with the mod in which case the motor could be used as a general replacement [Smile]

Kev.

--------------------
GS1200 Xenon with Elmo 1.0...great combo along with a 16-CL Xenon for that super bright white light.

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Alan Rik
Film God

Posts: 2211
From: New York City, NY, USA
Registered: Jun 2003

posted January 06, 2006 09:42 AM

Pretty soon the GS machines will become like the Hot Rod cars of the 60's...modded out individually...a very cool thing!

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Adrian Winchester
Film God

Posts: 2941
From: Croydon, London, UK
Registered: Aug 2004

posted January 06, 2006 08:31 PM

I was interested in the shutter that allows you to change between 2 and 3 blades, but someone on this forum a while back said that it was not very easy and fast to make the change, which put me off.

--------------------
Adrian Winchester

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Paul Adsett
Film God

Posts: 5003
From: USA
Registered: Jun 2003

posted January 06, 2006 08:42 PM

Hi Adrian,
I have done the 2-bladed shutter conversion myself. It is not a job for the faint hearted and it is essential to have the GS1200 maintainance manual in front of you as you do it, with all the exploded views of the innards of the machine. It took me all day to convert mine, but a lot of that time was spent cleaning and lubricating all the parts, which you will want to do if you are going to all this trouble. But if you have the manual, and don't try to rush the job, it is definately a doable job with fairly low risk of damage to the machine. Kevin once told me that he could do it in 90 minutes! Once you have done it once, I imagine that the next time would go a lot faster. Was it worth it? Absolutely! The increase in light output (theoretically about 35%) is very apparent indeed, with the picture looking much much whiter.

--------------------
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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Jan Bister
Darth 8mm

Posts: 2629
From: Ohio, USA
Registered: Jan 2005

posted January 06, 2006 10:21 PM

Torque... that's the keyword. Now if Wittner would do what I did and integrate a gear ratio into the take-up reel arm like I did with my ST-1200HD, then that issue would be solved right there and then... it would (should) work on all versions of the GS1200. The same would have to be done on the supply reel arm so that the machine is actually able to rewind a 2400ft. reel all the way through. The rewind speed would drop, of course - then again, if you really wanted to use full 2400ft. reels for your features, you'd also want to invest in some good manual rewinds to do the rewinding of such long films outside of the projector. [Wink]

I could never warm up to 2-bladed shutters, on a side note... even at 24fps, the flicker associated with a 2-blade is just too apparent to me. Does that put me in the minority? Is my eyesight just plain too good? I wonder...

--------------------
Call me Phoenix. *dusts off the ashes*

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Michael De Angelis
Phenomenal Film Handler

Posts: 1261
From: USA
Registered: Jul 2003

posted January 06, 2006 11:40 PM

quote:
what I did and integrate a gear ratio into the take-up reel arm like I did with my ST-1200HD, then that issue would be solved right there and then... it would (should) work on all versions of the GS1200. The same would have to be done on the supply reel arm so that the machine is actually able to rewind a 2400ft. reel all the way through.

Jan,
I am not familiar with the gear ratio on the ST1200 models. Is it the same as it is on the GS 1200? It would be good to know how you were able to improve the projector with this modification and post the results on the Forum. If you had already, then I will look for previous posts. Does this upgrade have any affect on the sound of the film?

I had a problem with a small nylon gear my own GS1200 which I needed to replace, because it eventually cracked and would not engage the take up reel.
I was wondering if an improved gear ratio in the GS, would prevent this from occuring in the future?

Michael

--------------------
Isn't it great that we can all communicate about this great
hobby that we love!

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Jan Bister
Darth 8mm

Posts: 2629
From: Ohio, USA
Registered: Jan 2005

posted January 07, 2006 06:15 PM

For answers...

http://8mmforum.film-tech.com/ubb/ultimatebb.php?ubb=get_topic;f=1;t=001174#000000

(look for the post titled Elmo ST-1600HD, Mark II...)

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Call me Phoenix. *dusts off the ashes*

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Michael De Angelis
Phenomenal Film Handler

Posts: 1261
From: USA
Registered: Jul 2003

posted January 08, 2006 10:32 PM

Thank you Jan,

Very impressive!

Michael

--------------------
Isn't it great that we can all communicate about this great
hobby that we love!

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