A modular wall structure comprising - multiple primary frames for carrying cladding elements and building service devices, - a secondary frame for supporting the primary frames, and - a moving system for moving each primary frame with respect to the secondary frame in six degrees of freedom, - the moving system comprises at least three moving units for each primary frame, wherein each moving unit comprises - a housing attached to the primary frame, characterized in that each moving unit further comprises - a spherical joint bushing inside the housing, wherein said joint bushing can be translated parallel to the plane of the primary frame, - a first drive unit attached to the primary frame for moving the ball joint bushing relative to the housing along a first direction (x) by means of a first shaft, - a second drive unit attached to the primary frame for moving the ball joint bushing relative to the housing along a second direction (y) perpendicular to the first direction (x) through a second axis, and - a third drive unit attached to the secondary frame for moving the ball joint bushing relative to the secondary frame in a third direction (z) perpendicular to both the first direction (x) and the second direction (y), through a third shaft, - wherein a free end of the first shaft is slidably mounted into a first guide groove of the ball joint bushing, said first guide groove extending in the second direction (y), - wherein a free end of the second shaft is slidably mounted in a second guide groove of the ball joint bushing, said second guide groove extending in the first direction (x), and - wherein a free end of the third shaft is mounted into a ball joint rotatably arranged in said ball joint bushing. - multiple primary frames for carrying cladding elements and building service devices, - a secondary frame for supporting the primary frames, and - a moving system for moving each primary frame with respect to the secondary frame in six degrees of freedom, - the moving system comprises at least three moving units for each primary frame, wherein each moving unit comprises - a housing attached to the primary frame, characterized in that each moving unit further comprises - a spherical joint bushing inside the housing, wherein said joint bushing can be translated parallel to the plane of the primary frame, - a first drive unit attached to the primary frame for moving the ball joint bushing relative to the housing along a first direction (x) by means of a first shaft, - a second drive unit attached to the primary frame for moving the ball joint bushing relative to the housing along a second direction (y) perpendicular to the first direction (x) through a second axis, and - a third drive unit attached to the secondary frame for moving the ball joint bushing relative to the secondary frame in a third direction (z) perpendicular to both the first direction (x) and the second direction (y), through a third shaft, - a housing attached to the primary frame, characterized in that each moving unit further comprises - a spherical joint bushing inside the housing, wherein said joint bushing can be translated parallel to the plane of the primary frame, - a first drive unit attached to the primary frame for moving the ball joint bushing relative to the housing along a first direction (x) by means of a first shaft, - a second drive unit attached to the primary frame for moving the ball joint bushing relative to the housing along a second direction (y) perpendicular to the first direction (x) through a second axis, and - a third drive unit attached to the secondary frame for moving the ball joint bushing relative to the secondary frame in a third direction (z) perpendicular to both the first direction (x) and the second direction (y), through a third shaft, - wherein a free end of the first shaft is slidably mounted into a first guide groove of the ball joint bushing, said first guide groove extending in the second direction (y), - wherein a free end of the second shaft is slidably mounted in a second guide groove of the ball joint bushing, said second guide groove extending in the first direction (x), and - wherein a free end of the third shaft is mounted into a ball joint rotatably arranged in said ball joint bushing.