Frentech Aerospace, L.K.Engineering and Brno University of Technology have completed the development of the CPD demonstrator in 2020 and only the final tests, postponed due to the Covid19 pandemic, remain to be carried out. The unique structure from LKE, using a combination of high-tech materials such as carbon composites and titanium alloys, will hold tens of kilograms of permanent magnets in the correct array shape. Despite the vibrations of the rocket, the vacuum of space and the large temperature range, the magnets must not move or lose any of their function. Their shape and magnetic field were precisely optimised for the task by scientists from the Faculty of Mechanical Engineering at the BUT, who simulated the passage of protons through the divertors. At Frentech Aerospace, the entire diverters were assembled in clean rooms with an accuracy of tenths of a millimetre.