35mm development reel

thingiverse

This is a work in progress. Currently (June 4th, 2020) it can hold approximately 60' of film. things that need work or other notes: the core is not really done or appropriate yet. If you use it, I suggest you cut end of film at slight diagonal or point, and consider taping it on. Getting the film started can be difficult. Once you get it started, it works great. make sure the film is slack and wind it on, left hand turning the spindle, and right hand helping feeding the film at 90 degree to the spool, it will guide itself into the groove and load properly, as long as there is no tension on the roll. I have to take time to provide slack off the original load, spool that up, then repeat. Initially this was designed with a 3 gallon bucket with a Gamma lid for the actual tank. I since got a nifty old stainless steel tank, which caused me to modify design somewhat. The stainless tank has no way to add water without turning off light and dumping it in, but originally I planned on making the plastic bucket and gamma lid be light tight, so central tube was designed with the plan of putting in chemicals in that way. But I since modified it for my stainless tank. AFBMA 0.586 thread in the top to the tank. If I was going with plastic bucket I would extend that vertical tube so that it would breach the Gamma lid and design some sort of light proof bits for that. But I leave that to you. I have developed with it and works well. I would NOT dry the film in it, as when it is not in fluid, it will stick together when wet. When initially loaded I run my film from center to outer diameter in the bag and it should feel it "fiffle" or smoothly "clack-clack-clack" telling you film is properly secured. CHANGELOG: June 11, 2020: I fixed a CAD problem in main dev1. It did not affect how I printed it, as it was too small and my slicer ignored it, but now the file should be clean.