How to scale a edges 3D model for beginners?

Beginners can scale a 3D model’s edges using software like Blender or Tinkercad—select the edges, activate the scale tool, then drag handles or enter values to adjust size. This lets you resize specific edges without altering the whole model—use axis locks (e.g., X/Y/Z in Blender) to scale along one direction and avoid distortion. For new users, start with Tinkercad (simpler interface) or Blender’s basic mode; practice on a cube first to get comfortable with edge selection and scale control.