import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-18,0))
w1=cq.Workplane('ZX',origin=(0,-19,0))
r=w0.sketch().segment((-50,33),(-48,21)).arc((-48,16),(-47,12)).segment((-45,0)).segment((-32,2)).arc((-29,3),(-27,3)).segment((-27,-3)).arc((-28,-9),(-27,-15)).arc((-14,-16),(-9,-28)).arc((10,-7),(-14,9)).segment((-15,17)).arc((-15,22),(-16,26)).segment((-18,38)).segment((-31,36)).arc((-34,36),(-37,35)).close().assemble().finalize().extrude(37).union(w1.sketch().segment((44,-21),(50,-21)).segment((50,-5)).segment((45,-5)).arc((-8,-9),(44,-21)).assemble().finalize().extrude(10))