import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,66))
r=w0.workplane(offset=-132/2).moveTo(-68.5,86).box(13,28,132).union(w0.sketch().segment((11,-40),(49,-40)).segment((49,-24)).segment((28,-24)).arc((20,-33),(11,-40)).assemble().finalize().extrude(-59)).union(w0.sketch().segment((-28,-42),(-25,-54)).segment((-10,-50)).segment((-10,-100)).segment((57,-100)).segment((57,-49)).arc((23,-25),(57,-2)).segment((57,29)).segment((-10,29)).segment((-10,18)).segment((-7,18)).segment((-6,-19)).segment((-10,-19)).segment((-10,-38)).close().assemble().reset().face(w0.sketch().arc((72,-17),(73,-24),(73,-30)).segment((75,-29)).close().assemble()).finalize().extrude(-17))