A foot scanning machine is a specialized device designed to capture detailed 3D measurements and images of the foot, utilizing various technologies to map its contours, dimensions, and functional characteristics. This machine is widely used across industries, including healthcare, footwear manufacturing, sports science, and orthotics, to replace traditional manual measurements with precise, digital data. The core technologies employed in foot scanning machines include structured light (projecting a pattern onto the foot and using cameras to calculate depth), laser triangulation (emitting laser lines and measuring their distortion), photogrammetry (combining multiple 2D images to create a 3D model), and pressure sensing (recording force distribution during weight-bearing). Each technology offers unique advantages: structured light provides high resolution for detailed anatomy, lasers offer speed and portability, photogrammetry works well for full-body integration, and pressure sensors capture dynamic functional data. In operation, a foot scanning machine typically requires the user to place their foot on a platform or within a scanning enclosure, where the device captures data in 10–60 seconds. The resulting 3D model includes precise measurements of foot length, width, arch height, heel curvature, and toe alignment, which can be exported in formats like STL, OBJ, or CSV for use in CAD software, manufacturing systems, or electronic health records. For healthcare professionals, these machines aid in diagnosing conditions like flat feet, bunions, or diabetic foot issues and designing custom orthotics. For footwear brands, they enable the production of personalized shoes that fit individual foot shapes, enhancing comfort and reducing returns. In sports science, foot scanning machines analyze how feet interact with surfaces during movement, informing the design of performance footwear and injury prevention strategies. By combining precision, efficiency, and versatility, foot scanning machines have become indispensable tools in advancing personalized foot care, product design, and research.