Interlocking shapes to make paved surfaces

At facilities installed at Clausthal University of Technology, the PAVER Consortium achieved a spot size of 5-10 cm for melting simulated moondust. Proceeding through trial and error, they devised a strategy using a 4.5 cm diameter laser beam to produce triangular, hollow-centred geometric shapes approximately 20 cm across. These could be interlocked to create solid surfaces across large areas of lunar soil which could serve as roads or landing pads.