3D scanner marker

Design ConceptI want to create a football design reference for 3d scanner. There are 2 models:- one model has the insert for magnet ( magnet size is dia.3 mm * 5 mm height ), you have to pause the printing after 21 layer ( check it any way in the programm ), put the magnet and then continue the printing ;-second one only printable version without insert.The markes were designed for 10 mm reference points. You can scale it into the printing program to reach neccesary sizeThe diameter is 50 mm.Printing settingК1Max ,No mandatory settings , Layer height is 0,2 , Infill 15 % , 4 layers wall , printing time 25 min