Selective Ironing Adds Designs To 3D Prints

Julius Curt developed selective ironing, a technique for adding surface designs to FDM 3D prints without increasing object height. Standard ironing smooths top surfaces by making extra nozzle passes; selective ironing applies this only in a defined pattern. The workflow combines CAD modeling (a one-layer-tall feature defines the pattern) with a post-processing script that removes that layer from the model and replaces it with the modified ironing path. The result is embedded logos, part numbers, or decorative patterns on the print surface. The project is experimental and available on GitHub.