Grazers Series
A series of Sci-Fi illustrations for my parents' special days. An experiment in scifi skeuomorphosism & bright saturated colors.
A gas giant planet has some gasses that are valuable for industrial uses.
Extractor (grazer) robots suck up the valuable gasses & store them in their 2 tanks. They don't have any propulsion, in order to reduce costs. They drift & sail around the gas clouds using their movable solar panels as sails.
Sometimes they get in a place or current they can't get out of. Then a guiding robot with engines flies over & pushes them back to where they need to be. It uses its long array of articulating rollers.
When full, the grazers are pushed & pulled into the station. There they're emptied & released to repeat the process.
But rivals want to sabotage the station, so they deploy small leak-making robots. The station counters this with robot designed to catch the leakers. Finally, large transports carry the gasses to manufacturing centers around the solar system.