import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,52))
r=w0.sketch().push([(-56,-25)]).circle(29).circle(9,mode='s').reset().face(w0.sketch().segment((-8,-29),(5,-29)).segment((5,35)).segment((6,35)).segment((6,-29)).segment((19,-29)).segment((19,-28)).arc((98,28),(1,33)).segment((-8,33)).close().assemble()).finalize().extrude(-108).union(w0.workplane(offset=-26/2).moveTo(-55.5,-24.5).box(89,23,26)).union(w0.sketch().segment((-98,-55),(-84,-55)).arc((-56,-66),(-27,-55)).segment((-13,-55)).segment((-13,6)).segment((-27,6)).arc((-56,17),(-84,6)).segment((-98,6)).close().assemble().push([(-56,-25)]).circle(17,mode='s').finalize().extrude(5))