Explosive forming as a high-velocity forming technology relies on the relative displacement of each point deformed by the shock wave. Explosives are used for shaping metal or other workpieces, particularly suitable for large-sized objects and complex geometries. 3D scanning can be highly useful for analyzing and measuring the dimensions of the initial geometry of a workpiece, and after explosive forming, scanning is used to review the final geometry. By comparing CAD models (before and after forming), deviations arising from the forming process are determined. This paper presents the determination of deviations in a metallic sphere made of St12 material with a sheet thickness of 1 mm. A comparison was also made with a metallic sphere of the same material but a sheet thickness of 1.5 mm, leading to specific conclusions.