import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-21,0))
r=w0.sketch().segment((-12,-24),(-12,-18)).segment((-9,-18)).arc((-89,30),(-12,-24)).assemble().reset().face(w0.sketch().segment((-58,-34),(-42,-34)).segment((-42,-2)).arc((-39,5),(-42,11)).segment((-42,43)).segment((-58,43)).segment((-58,11)).arc((-61,5),(-58,-2)).close().assemble(),mode='s').reset().face(w0.sketch().segment((33,-36),(77,-36)).segment((77,-24)).segment((100,-22)).segment((97,9)).segment((77,7)).segment((77,8)).segment((33,8)).close().assemble()).finalize().extrude(42)