precision 3D printed construction enables accurate fit and easy assembly, with a compact design for tight workspaces. Model sandpaper sander offers multidirectional grinding with no dead angles, improving coverage and efficiency. Suspended structure minimizes excessive grinding; the sandpaper follows curves more closely and distributes grinding pressure evenly, reducing uneven removal. Hard and soft design supports complex surfaces; the sandpaper belt can reach irregular geometries, making it easier to grind joint lines on handmade character models. Practical and reliable for hobby and model work: smooths small features, contours, and intricate details without compromising surrounding areas. Use scenarios: Finishing and detailing handmade character models and figurines, where curves and joints require careful smoothing. Postprocessing 3D printed prototypes and model kits to remove seams and refine curved surfaces. Refining complex geometries on assembled model projects, including delicate joints and contour work.