Ok, this is exactly what I did step by step:nn1: Creation of Sketch1 in XYPlanen2: Drawing a circle of D1 = 30 mmn3: Surface from Sketch using Sketch1 as base objectn4: Creation of a new sketch into XYPlanen5: Drawing a circle (on Sketch2) of D2 = 29, 99 mmn6: Drawing a square (in Sketch2 again) of edge A = 40 mmn7: Surface from sketch using Sketch2 as a base object:nAs you can see, I get two surfaces but 1 part/body. I want to get two separate parts/bodies.n