What are the steps to hollow a supports 3D model for beginners?

For beginners, hollowing a 3D model with supports involves 4 simple steps: use beginner-friendly software, isolate supports, create an inner cavity, and adjust wall thickness. Start with free tools like Blender (tutorial-friendly) or Tinkercad (browser-based)—they’re easy to navigate. Isolate supports using selection tools to avoid altering the main model. Make a hollow by duplicating the model, scaling it down slightly, then subtracting it (Tinkercad) or using Blender’s “Solidify” modifier. Set wall thickness to 1–3mm for strength and material savings. Practice with basic shapes (e.g., a cube) first—this helps you get comfortable with tools. Short software tutorials are great too—they show steps visually for easier follow-through.