The request "123448: generate a solid piece" is somewhat ambiguous, but it likely refers to a specific or CAD modeling operation. In engineering design, "solid piece" or "solid body" usually refers to creating a 3D model that has volume, rather than a hollow shell or a 2D wireframe.
If you are preparing a model for , generating a "solid" piece often means: 123448
Joining separate mesh sections into one watertight volume using tools like or Blender . The request "123448: generate a solid piece" is
Ensure the "Thin Feature" option is unchecked to create a solid volume instead of a hollow shell. 2. Revolved Boss/Base 123448