Hi3D is an AI 3D maker platform designed to address the gap between digital models and successful physical prints by focusing on print preparation. The platform covers a full model-to-print process: AI generation, mesh repair, auto character splitting, connector generation, tolerance control, multi-color planning, smart build-plate layout, 3MF export, and slicer handoff. This continuous workflow aims to reduce manual fixing in software like Blender or Meshmixer, making it useful for figure makers, hobbyists, Bambu AMS users, print services, and small studios. The main highlight is the Auto Character Split feature, which divides a character into recognizable printable sections such as the head, torso, arms, legs, and accessories, keeping the result closer to a real model kit. This helps users avoid issues like models not fitting on the build plate or support cleanup damaging details. For hobbyists and figure creators, this feature provides a clean set of printable components without needing to manually cut parts in other modeling software.