Fig. 7: Programmable heating surface through self-folding MaSoChains.
From: Self-folding soft-robotic chains with reconfigurable shapes and functionalities
a An illustration of the mechanical structure and electrical configurations between heat elements on the flexible PCB. b An illustrated bird’s eye view of a 3D-structured flexible PCB geometry after assembly. c Optical image of the sample after assembly with a thermal display area (marked by dashed yellow lines). A cross-section view (the purple rectangle) shows the relative position between the assembly magnets and the folded flexible PCB. d, e The visible and time-lapse infrared images of the letters “ETH” on the folded structure, which heats up over time from room temperature. The detailed experimental conditions can be found in Methods. The scale bar is 10 mm.
