Movie S1.

Fabrication of three metallic architectures by laser-DIW. (Part 1) A 2× real-time movie of printing 500-µm diameter coil using a 10-µm nozzle to extrude silver ink and a print speed of 500 µm/s. Two camera angles are shown: a side view and a top view. The laser and nozzle appear stationary as both cameras mounted to the translating 3D printer. The laser illumination is turned off at the top of the helix to facilitate return to the substrate. After anchoring the descending wire to the substrate, the printer then revisits the unannealed silver with the laser to anneal. (Part 2) A real-time movie to capture the printing of a 1.6-mm-diameter hemispherical spiral. There are three views shown: a wide-angle shot from a camera in the laboratory frame, and two close-up views from the side- and top printer-mounted cameras. Note the rotation of the rotary stage to enable the printing of the curvilinear structures. (Part 3) A 2× real-time movie of printing a metal butterfly, shot using the side- and top-view cameras.