Have you seen this, or know where we can locate some of the ribbon cable shown here? It’s about 15.5mm wide, 30 pin and ~0.35mm thick. Click to see close up photos of the ribbon and connector.

Update:http://dkc1.digikey.com/US/PDF/T043/P1.html
http://dkc3.digikey.com/PDF/T043/0049.pdf
here’s the 6″ part: 30pin 15.5mm digikey part number: HFF-30U-06-ND price each: $5.40 parlex part number: 0.5MM-30-6-B
I’m almost certain this is it. Holy crap, you would have a hard time resolving how many emails we sent out and have thus far gotten no response from to try to find this information. Heuristics in full effect, oooof.
HOWEVER, I would like to give special thanks to Ken at Meritec who was extremely helpful, and very generous. I’d recommend that if you’re looking to do a medium to large fabrication job, the folks at meritec might serve you very well.
Update 2: Yeeeeeeeeah! I want to thank Pik Narksuk of Fujikura America, Inc. for helping us out and handing me 6 one foot cables to the specs I was looking for! See that photo? F-U-J-I-K-U-R-A! Thank you thank you thank you! I think these are going to do the trick!

dude, that’s like.. $60 worth of cables right there, dang!
Update 3: Ok, things are working quite well with the new cables after jono and I spent a whole day figuring out the best way to strip that stuff. (sandpaper some off, then scrape with a sharp sharp blade, easy pressure, no rushing. You’ll tear it or scrape off the metal if you’re too aggressive) check it out:

oh, a video you want? Ok, here’s a video to go watch!
Now we’re starting to run into new problems with the design. We repacked up the whole mess of electronics of the monitor back into the case, and are comfortably using the longer FFC cables to clear the boards from the sides to provide a clear channel for the light from the overhead projector… Now what we’re starting to realize is that the whole mess-of-electronics-repacked-into-the-case is maybe going to prove to be a serious problem when we actually get the glass onto the overhead projector.

have you seen this cable, or know where we can locate longer lengths of it?:

the cables say “Sumitomo-Y” on them. I tried to contact the US representative for that manufacturer, but they haven’t gotten back to me. Notice, also, the cable appears to be made with semi-rigid blue plastic as the substrate. It’s somewhat flexible, but it’s much more rigid than the FFC cable. On the FFC cable, the leads were plated with some silvery metal over copper. We haven’t dissected this cable, so I don’t know for sure what the story is with the internal construction. We do know the cables are ~44.5mm wide, ~1mm pitch between the leads, and ~0.4mm thick. Ideally we’d find cables that would be 6-12″ long? Shorter is fine. Help, have you seen this cable or know where can find it?