Using the Solidify Modifier
Steps:
- Select Object – Choose the object to which you want to apply the modifier.
- Open Modifier Panel – Go to
Properties>Modifier Properties(wrench icon). - Add Solidify Modifier – Click Add Modifier and select
Solidify. - Adjust Thickness – Use the
Thicknessslider to control the extrusion depth. - Apply Modifier – Press
Ctrl + Aor clickApply(must be in Object Mode).