my profile | my password | search | faq & rules | forum home

» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » Proper threading of Mag penthouses (Page 1)

This topic comprises 2 pages: 1  2

Author Topic: Proper threading of Mag penthouses Nathan Guerriero Film Handler Posts: 43 From: Chicago, IL, USA Registered: Apr 2002 posted 06-14-2002 03:32 PM                     What is the proper way to thread 35 through the Century mag penthouse on a JJ. I was watching Windtalkers last night and noticed a thin baseline scratch coming and going. I kept checking the film path and everything seemed fine, but I could be mistaken. I think that it is coming from the mag penthouse, or they are just leftover scratches from the screening at the Lake Street Screening Room. (kidding) So what's the proper way to thread that thing? Thanx!  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 06-14-2002 03:39 PM                     I'll take a picture and post it later today. However, you should not be threading past the mag head if you are not running a mag print. Also, the sprocket drive in the JJ's penthouse needs to be flipped so the 70mm pad roller is against the sprocket.  |  IP: Logged Nathan Guerriero Film Handler Posts: 43 From: Chicago, IL, USA Registered: Apr 2002 posted 06-14-2002 03:45 PM                     Right, I should clarify. I'm not threading through the head, I'm threading around it. Or rather, I'm not sure how to thread around it. I don't use the JJs on a daily basis, so I'm a little unfamiliar with them.  |  IP: Logged Nathan Guerriero Film Handler Posts: 43 From: Chicago, IL, USA Registered: Apr 2002 posted 06-23-2002 04:25 PM                     Well, I'm sorry to see that this topic hasn't sparked great interest in the community, and I don't mean to be a pain in the butt, but if someone could help me with this, I would appreciate it. I've got to open this theatre on Friday for full-time operation, and I'd just assume not destroy our prints on the first night. Thanx!  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 06-23-2002 04:32 PM                     I believe that the threading diagram is in the projector manual in the manual section Turn the pad assembly on the penthouse sprocket so the 70mm side engages the sprocket and the 35mm film will run down the backside of the 35mm roller  |  IP: Logged Josh Jones Redhat Posts: 1207 From: Plano, TX Registered: Apr 2000 posted 06-23-2002 04:41 PM                        So what happened to the picture idea? Josh  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 06-23-2002 05:18 PM                     Well it looks like the pages with the threading diagram 73 and 74 are not in the online pdf file for the machine but the instructions in text form are  |  IP: Logged Manny Knowles "What are these things and WHY are they BLUE???" Posts: 4247 From: Bloomington, IN, USA Registered: Feb 2002 posted 06-24-2002 08:16 AM                     I've never seen a JJ so I'm interested in seeing a pic.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 06-24-2002 09:40 AM                     JJ's look at the pictures of the Uptown,, the Music Hal;l and of course the Filmtech screening room  |  IP: Logged Christopher Seo Jedi Master Film Handler Posts: 530 From: Los Angeles, CA Registered: Jun 99 posted 06-24-2002 12:13 PM                     The film should be contacting only two rollers in the mag penthouse: the first metal roller encountered going into the penthouse, and the nylon 35mm pad roller for the penthouse drive sprocket. Again, turn the 35/70 pad roller so that the 70mm roller is against the sprocket and the 35mm roller is in back, and run the film around it (to the left). From that, the film should go straight into the projector head and the upper feed sprocket.  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 06-24-2002 12:24 PM                        Here's the manual (high quality scan, large 6 megabyte .pdf file). See pages 10 to 16 for threading diagrams: CLICK HERE ------------------ John P. Pytlak, Senior Technical Specialist Worldwide Technical Services, Entertainment Imaging Research Labs, Building 69, Room 7525A Rochester, New York, 14650-1922 USA Tel: +1 585 477 5325 Cell: +1 585 781 4036 Fax: +1 585 722 7243 e-mail: john.pytlak@kodak.com Web site: http://www.kodak.com/go/motion  |  IP: Logged Nathan Guerriero Film Handler Posts: 43 From: Chicago, IL, USA Registered: Apr 2002 posted 06-24-2002 05:31 PM                     Thanx for the info, everyone. I read the manual and I feel a much more comforable working with the JJs now, and I'm not so worried about scratches. Thanks again!  |  IP: Logged Gerard S. Cohen Jedi Master Film Handler Posts: 975 From: Forest Hills, NY, USA Registered: Sep 2001 posted 06-24-2002 06:16 PM                     Wow! John, you're right it is a "high wuality large format scan", fastest and most beautiful Acrobat Reader .pdf file I've ever viewed! Was that bit of color atop the right corner of my screen a Kodak logo? Good to see "my old" JJ looking like a Peter Gowland magazine cover.  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 06-25-2002 07:22 AM                        The .pdf file for that manual was on the R. S. Engineering and Manufacturing website. I assume they did the scan from an original Century manual. They have over 700 manuals on-line. http://www.rsem.com/ http://www.rsem.com/equipment-manuals.asp ------------------ John P. Pytlak, Senior Technical Specialist Worldwide Technical Services, Entertainment Imaging Research Labs, Building 69, Room 7525A Rochester, New York, 14650-1922 USA Tel: +1 585 477 5325 Cell: +1 585 781 4036 Fax: +1 585 722 7243 e-mail: john.pytlak@kodak.com Web site: http://www.kodak.com/go/motion  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 06-25-2002 02:27 PM                     That was a Strong produced pdf file and I haven't had the time to add it to our collection here. Many of their others are actually Film-Tech scanned pdf files too, with my front page stripped from it. Grrrrr.  |  IP: Logged

All times are Central (GMT -6:00)

This topic comprises 2 pages: 1  2

Printer-friendly view of this topic

Hop To: Select a Forum: Category: Operations -------------------- Digital Cinema Forum Film Handlers' Forum Large Format Forum Ground Level Feature Info, Trailer Attachments & REAL Credit Offsets Category: Community -------------------- Film-Yak Film Handlers' Movie Reviews The Afterlife Bob Maar's Joke-A-Thon Category: Classified -------------------- Equipment and Supplies Wanted/For Sale Help Wanted/Seeking Employment Category: System -------------------- Software Beta Testing Forum

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.