Quote Originally Posted by Ed Workman
Thanks for the help Don
Where can I find Exeter paper? I have been saving 120 backing paper toward an attempt to glue them on a bias to make wider strips and distribute the lap, but that is a grasping-at-straws thing.
I have also thought about a slitter to no good end- My best shot is to rig a razor blade(s) and attempt to pull the film thru it/them. Again, I just gotta get huevos to overcome the fear-of-frustration factor
Semper/Exeter Paper Company

If you drop in over at nelsonfoto.com and search for "Spartus Full-Vue" you'll see a slitter setup that was made to convert 120 to 127; something similar could be fabricated for cutting larger film -- and yes, it's pretty close to pulling the film through a slot with razor blades at the correct position. Also, look around for designs for "film slitters" for making 16 mm or Minox film from 120 or 35 mm -- there are a lot of them out there, and what works for them will work for you. There was also a posting there with a direct source for the correct Exeter paper product to make backing, and I gave some basic information on how you'd go about fabricating spools if you have one to copy or only dimensions.

I'd suggest getting some blades for rotary cutters (from an office supply store) and a plastic rolling pin (from a kitchen store) -- pull the film from spool to spool over the rolling pin with pressure on a bar holding the rolling blades, and you'll get clean cuts without scratching the film, and there won't be so much drag you'll give yourself blisters operating the cutter. Build this into a light tight box, and you won't even have to stand in the dark while you crank the handle...

Do a *really* good job with this, and you could actually make some money selling "reloads" for various formats, backing and paper for folks to roll onto their own spools. Film for Classics used to get $30/roll for 122 and 124, with spools -- I bet you could get $15/roll for reloads; if you get into fabricating spools, you'd sell them separately, which would help sell film (by keeping costs down, and by making spools available for cameras that don't have two).

And don't think I haven't thought about doing exactly this -- it'd cost a few hundred bucks to start up, though, and I don't have the money; nor do I think I could handle big rolls of film in my bathroom/darkroom that's got enough light leakage I can see a rough outline of my hand after only a couple minutes...