For processing 5" rolls of film: I think a good starting point might be to make a router radius cutter with a spiral of something about 1/8 to 1/4 thick that would create a spiraled groove in plexiglas top and bottom plates for wind up your 5" like a 35mm roll. belt webbing might be thick enough to allow your spiral to keep an appropriate distance. Also cut holes in the plex plates to allow for more chemistry to move around.
I built my own "JOBO" processor (after wasting $7000 on a JOBO ATL that broke down every second run--complete piece of junk. Someone connected with JOBO said they don't expect them to last more than a year. A repair technician said the newer models are improved.) I used 2" ABS tubing as the rollers powered by a 20-30 RPM motor from Grainger. I spent $90 on a Grainger moter reversing relay to create alternate rotation direction. The motor is hinged such that the weight of the motor rest (via the Lawnmower drive wheel) on the two ABS rollers. All of this is in a quickly made plex tank. Works great and is better than anything JOBO ever made. The rollers are about two feet long to accomodate the large 20x24 JOB Drum (they make good drums btw) and just seperated enough to fit the smallest tank I have. The length of the rollers completely ellimanates the silly little wheels used in most drum processors. I never have to worry about fragile junk breaking or my drums rolling off. To make the tank bodies the same diameter as the lids use black ABS plumbing tape-used to wrap black metal pipe that is buried in the ground (any hardware will know what this is). Works like a charm. ---William Nettles [EMAIL PROTECTED] Nettles Photo / Imaging Site http://www.wgn.net/~nettles > From: [EMAIL PROTECTED] > Reply-To: [EMAIL PROTECTED] > Date: Tue, 16 Oct 2001 12:07:08 -0600 > To: [EMAIL PROTECTED] > Subject: Cameramakers digest, Vol 1 #227 - 4 msgs > > I just bought a huge roll of >> Aerial reproducing film, Kodak SO-192 for just about nothing. It's 5" >> rollfilm and I've also just bought a 5" rollfilm back to use it with. >> Since there are no available tanks to develop it in, I'm hoping I can >> modify a multi-roll Jobo tank to allow me to develop 6 feet or so at a >> time. I also hope I can "reverse engineer" the back to see how hard it >> would be to make approximate copies. >> >> >> Gene Johnson _______________________________________________ Cameramakers mailing list [EMAIL PROTECTED] http://rmp.opusis.com/mailman/listinfo/cameramakers
