import cadquery as cq
w0=cq.Workplane('YZ',origin=(6,0,0))
r=w0.sketch().push([(-45.5,-33.5)]).rect(9,7).push([(-45.5,-1.5)]).rect(9,7).push([(-12,-20)]).rect(12,26).push([(-9,-21)]).rect(4,4,mode='s').push([(27,14)]).circle(23).finalize().extrude(-13)