import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-6))
w1=cq.Workplane('ZX',origin=(0,17,0))
r=w0.sketch().arc((-19,66),(-41,-14),(37,15)).arc((39,73),(-19,66)).assemble().push([(-9,20)]).circle(14,mode='s').finalize().extrude(-55).union(w0.workplane(offset=-34/2).moveTo(40.5,-65).box(31,70,34)).union(w1.sketch().segment((29,0),(61,0)).segment((61,31)).segment((29,31)).arc((-41,16),(29,0)).assemble().finalize().extrude(83))