You can use the Shell tool to create models with a uniform wall thickness. This tool allows you to convert a face of any solid geometry into a hollow shell with a defined wall thickness.
To use the Shell tool:
Go to Tool > Shell. For other methods of accessing this tool Accessing tools.
Select the face or faces to remove.
Use the gizmo to define the wall thickness for the shell.
Select Done. Note: When using Shell from the adaptive menu, select an empty area of the grid to complete the tool.
History settings
To manage history settings for the Shell action, find the step for your specific shell and then view or modify the following:
Target – Click/tap Edit… or Select… to choose a different target for the face you want to shell and then select Done to finish.