checklist cards 3d model

List the technical requirements a 3D model generated in Tripo must meet to import cleanly into Roblox Studio. Cover: accepted file formats (FBX/OBJ/glTF) and which Tripo export to pick; triangle limits per mesh and for the whole model; texture rules (max resolution, supported PBR maps: color, normal, metalness, roughness; single material preferred); mesh rules (manifold geometry, no n-gons, single mesh vs. split parts, UV overlap); scale and orientation (units, up axis, pivot at origin); naming/hierarchy conventions; rigging constraints if it's a character (R15 skeleton, weights); and common causes of broken imports (transparency, oversized textures, too many parts). For each item give the exact limit or value plus a one-line fix in Tripo or Blender. Output as a compact pre-export checklist.