Anyone who has ever processed real analog film in a darkroom probably remembers two things: the awkward fumbling in absolute darkness while trying to get the film loaded into the developing reel, and the tedium of getting the timing for each solution just right. This automatic film-developing machine can’t help much with the former, but it more than makes up for that by taking care of the latter.
This is a companion discussion topic for the original entry at https://hackaday.com/2024/01/08/darkroom-robot-automates-away-the-tedium-of-film-developing/