import cadquery as cq
w0=cq.Workplane('YZ',origin=(2,0,0))
r=w0.sketch().segment((-80,-100),(44,-100)).segment((44,30)).segment((-37,30)).arc((-58,22),(-80,22)).close().assemble().push([(-7,-62)]).circle(17,mode='s').finalize().extrude(-87).union(w0.workplane(offset=-2/2).moveTo(49,5).cylinder(2,51)).union(w0.sketch().segment((-89,-87),(-78,-87)).arc((-42,-99),(-6,-87)).segment((5,-87)).segment((5,-76)).arc((16,-42),(5,-8)).segment((5,3)).segment((-6,3)).arc((-42,16),(-78,3)).segment((-89,3)).segment((-89,-8)).arc((-100,-42),(-89,-76)).close().assemble().push([(-18,68)]).circle(32).finalize().extrude(82))