I need a custom web app or software tool that can automatically create silicone mold designs from an imported STL file, similar to the reference video I will provide. Core Features: Import STL / OBJ file Auto generate mold box around the model Adjustable gap and wall thickness (mm) Automatic pouring hole creation Split mold into 3 parts (Left, Right, Base) Alignment keys / simple lock system Live 3D preview Export final parts as STL files The tool should generate clean, 3D-print-ready mold files suitable for silicone casting. Notes Exact workflow reference will be shared Technology is flexible (Web / Desktop) Looking for a simple, clean, working solution please check reference video