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https://www.micrometal.de/wp-content/uploads/sites/5/2022/06/Fuel-cells-.jpg19501300It is well-known today that photo-chemical etching (PCE) is a precise and cost-efficient way to fabricate complex parts with intricate geometries, tight tolerances, and highly repeatable results for large production runs. However, what is less well known is how this technology is evolving, and also what this evolution means for the stimulation of design freedom.