Archived posting to the Leica Users Group, 2000/10/31
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Tom, Thanks for the pointer. I will look through TAP Plastics' on-line catalogue, and draw a plan for a 16x20" or 20x24" processor. I figure that each of the baths should be at least 18x22x0.5" and 22x26x0.5" respectively. That will hold about 3200/4700 millilitre of chemicals, about the same as Nova. It would be desirable to make the openings of each baths a little wider like Nova, but I think that is critical only for the developer bath. The whole assembly will hold nearly 13/19 litre of chemicals, so it needs to be sturdy. I have reservations about simply using the light diffuser to separate the baths: when filling and emptying, there may be too much stress placed on the dividers. Still, their Prismatic Panel in the 0.15" thickness may be a good candidate. I suspect that the texture is on only one side, so epoxying two back-to-back will probably work. You then need four sturdy PVC boards for the four sides, and one for the bottom. So you need: 20x24" processor: 8 Prismatic Panels, 22x26x0.15" 2 PVC boards: 3.7x22.5x0.25" 2 PVC boards: 22.5"x26.5"x0.25" 1 PVC board: 3.7x26.5" 16x20" processor: 8 Primsmatic Panels, 18x22x0.15" 2 PVC boards: 3.7x18.5x0.25" 2 PVC boards: 18.5x22.5x0.25" 1 PVC board: 3.7x22.5" Much sanding and smoothing would be needed at the top of the dividers, too. On Tue, 31 October 2000, "Tom Schofield" wrote: > > I think he is talking about the trasparent monochrome processors. I am > thinking about seeing if I can build a 16x20 or 20x24 monochrome processor. > A trip to TAP Plastics may get almost everything. It appears from the > pictures that the dividers are a lexan material similar to that used in the > better quality ceiling mounted flourescent light fixtures, in the prism > style which would keep the print from sticking to the edges. That and a few > pieces of plexiglass, say 1/2 or 3/4" thick, grooved for the dividers to > slide in. TAP Plastics would be happy to advise what materials are chemical > resistant, I'm sure. You could probably have TAP manufacture it for you, > for a price. Question is what to use for a drain (besides a syphon hose!). > If any others are interested in collaborating on a DIY project, please let > me know. > > As an aside, their catalog has plans for light boxes. > > Tom > > ----- Original Message ----- > From: "Jim Brick" <jim@brick.org> > To: <leica-users@mejac.palo-alto.ca.us>; <leica-users@mejac.palo-alto.ca.us> > Sent: Monday, October 30, 2000 4:25 PM > Subject: [Leica] Re: JOBO Nova black-and-white processor > > > > At 10:42 PM 11/25/00 -0800, Ken Iisaka wrote: > > > > > >Too bad it only comes in 8x10 and 12x16. If available in 16x20, I'd buy > one > > >now. Monday is my 32nd birthday. (I bought 8x10 Quad for my birthday > last > > >year.) > > > > > > > Nova print processors come in sizes up to 20x24. Go to: > > > > http://www.novadarkroom.com/printprocspec.htm > > > > To see the models and sizes.