"outer_diameter"= 150
"inner_diameter"= 130
"inner_offset"= 5
"magnet_diameter"= 6.35
""magnet_hieght"= 3.15
"D1@Esquisse1"="outer_diameter"
"ring_height"= 18
"magnet_slot_offset"= 5
"D2@Esquisse1"="inner_diameter"
"D1@Boss.-Extru.1"="ring_height"
"D1@Esquisse2"="magnet_slot_offset"