The best way to turn a 3D mesh model is to use the rotation tool in 3D software like Blender, Maya, or SketchUp—this lets you precisely adjust orientation along the X, Y, or Z axes without changing the mesh’s shape.
These tools isolate rotation from other edits (e.g., moving or scaling). For example, in Blender, press "R" to rotate, then use the mouse or type numbers for exact angles.
For new users, use axis locks (hold "X/Y/Z" while rotating in Blender) to stay aligned—this avoids accidental shifts and makes turning easier.