Last year I made some large prints for my graduation at my art school. I really wanted to do that in my own darkroom as well. However it was not the right time. Then a month ago I went back to my school to do another large format print. That sparked my interest again. Since my personal situation changed I could start building my own setup in my darkroom to print large.
First I bought a gutter of 4 meters which I had cut in 3 aqual parts. They came with the appropriate endcaps. When I glued them on I poured water i them to make sure they were watertight. Next I bought some wood to make a stand on which I can hang the paper for the really big prints. I haven't finished the stand yet but I did make 3 prints to test the developing of a large sheet of paper in the gutters. My Durst enlarger can take a piece of paper of 90x125 cm. Big enough to give my gutters a serieus test run.
With this setup you don't need a lot of room to go bigger then big. I am fortunate enough to be given three rolls of expired paper that have some approx. 6 meters of paper left on them. Thanks Carlo! Now I can test and try out what works and what doesn't work in this setup without costing me an arm and a leg.
Since I didn't find a lot of info about this way of printing large prints I made a little video that shows how the workflow is at my darkroom. Enjoy watching the video: