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This topic comprises 4 pages: 1 2 3 4
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Author
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Topic: Clint Phare cue markers
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John Hawkinson
Film God

Posts: 2273
From: Cambridge, MA, USA
Registered: Feb 2002
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posted 11-08-2002 07:51 PM
OK, my woodruff cutter showed up yesterday; Monday's a holiday for my machine shop, but on Tuesday I expect to produce a prototype, and from there can make a bunch more.If you'd like to order, please drop me an email to jhawk@mit.edu and let me know how many 16mm, 35mm, and 70mm dies you would like, and how many scribers you would like. It'll be first-come first-served (if you commented previous to this message in the thread, you can keep your place), and if I get too many responses I'll have to draw a line. I don't know that I will be making any 70mm, but I'll certainly consider it. --jhawk
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John Hawkinson
Film God

Posts: 2273
From: Cambridge, MA, USA
Registered: Feb 2002
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posted 11-08-2002 09:27 PM
Approximate cost is $20 for one die and one scriber (but it might vary depending on quantity ,etc.).At the moment I'm only planning to make fixed-position dies, since that's what I have a clear design for and know how to produce. Though I suppose on further reflection, making adjustable positions wouldn't be too terrible, though it seems like the alignment might be rough. I think, initially, I'm going to make fixed position dies, and then I might experiment with adjustable ones if I'm still feeling motivated. Some design thoughts: I guess you'd want to adjust both the horizontal and vertical positions, rather than just one...that complicates doing it a fashion that would be truly square. As I see it, there are 2 options: 1. The alignment holes are in a seperate piece in the top of the die, and that piece bolts down to some captive nuts in the base. Loosen both bolts, adjust the exact position of the die, and then lock it down. The problem with this is it's hard to guarantee that you're positioned squarely (i.e. that the mark will be in the same place in all 4 frames). 2. There are two pieces, stacked, on top of the die base. The top piece has slotted holes such that it can only move (say) in the x direction. The lower (middle) piece has slotted holes such that it can only move in the y direction. The top piece bolts to the middle piece, and the middle piece to the base. Just to confirm, Brad, the application is so that you can go over dark cues that are too hard to see, yes? Have you tried scribing them freehand, without a die? I haven't tried that, but it seems worth investigating... --jhawk
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John Hawkinson
Film God

Posts: 2273
From: Cambridge, MA, USA
Registered: Feb 2002
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posted 11-08-2002 10:13 PM
Err, so this would be for a case where, say, the motor cue is present and the changeover cue is not, because the last foot of film has been lopped off. So you want to add a new changeover cue and want it to be in the same position as the motor cue? [wow, that sounds like a specialized application ]OK, sure, you can have two-piece design with slots in the y direction (or a track if you want to go to way more effort...), and no freedom of movement in the x direction except for having more than one hole. It doesn't seem like you could accomodate more than 3 or 4 horizontal positions, unless you were willing to accept not replicating them across all 4 frames and having to re-register the film in the die 4 times. I'm surprised that you think there are a small number of horizontal positions, though. Anyhow, you could measure them yourself with a caliper. Sure, if you want to mail them to me that would be fine, though my receipt of your film does not guarantee that I'll make the custom part . --jhawk
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John Hawkinson
Film God

Posts: 2273
From: Cambridge, MA, USA
Registered: Feb 2002
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posted 11-14-2002 07:00 PM
Status update: Finished up the prototype 35mm die on Wednesday, did a scriber today. I'll try to post some pictures when I and a digital camera are in the same place at once with working batteries...It definitely turned out that having the slot 3mm wider made registration annoying, so my version has two registration pins, one at the top and one at the bottom. --jhawk
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John Pytlak
Film God

Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000
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posted 11-15-2002 10:39 AM
Would there be any cost advantage to making the die out of plastic (e.g., DELRIN, NYLON, polypropylene, polyester), which might be easier to machine/mold in quantity? You want to be sure there aren't any burrs or sharp edges on the metal die that might scratch the print.------------------ 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: here Kodak Website
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