import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,10))
w1=cq.Workplane('ZX',origin=(0,-50,0))
r=w0.sketch().segment((-29,18),(20,18)).segment((20,22)).segment((0,22)).arc((-5,20),(-9,22)).segment((-29,22)).close().assemble().finalize().extrude(-33).union(w0.workplane(offset=-25/2).moveTo(15.5,34.5).box(63,31,25)).union(w1.workplane(offset=49/2).moveTo(17,-41).cylinder(49,6))