import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,5,0))
w1=cq.Workplane('ZX',origin=(0,10,0))
r=w0.sketch().push([(6,-13)]).circle(11).push([(13,-9)]).rect(4,4,mode='s').finalize().extrude(-55).union(w0.sketch().segment((-31,21),(-26,2)).segment((-17,4)).segment((-22,24)).close().assemble().finalize().extrude(45)).union(w1.workplane(offset=36/2).moveTo(26,-10).cylinder(36,5))