The device operates like a 3D printer but replaces conventional heat sources with concentrated solar energy. A parabolic reflector gathers sunlight and channels it through fibre optic bundles, intensifying the light to more than 3,000 times the strength of sunlight at Earth’s surface. At the focal point, temperatures exceed 1,300°C, hot enough to melt regolith into solid, dense shapes. Tests with basalt-based simulated Moon soil have produced flat surfaces, curved structures, and complex geometries suitable for lunar construction.
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