import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-12))
w1=cq.Workplane('YZ',origin=(13,0,0))
r=w0.sketch().push([(-21,46)]).circle(4).reset().face(w0.sketch().segment((-10,2),(-7,1)).arc((-3,-2),(2,-2)).segment((6,-3)).segment((7,0)).arc((10,5),(10,10)).segment((11,13)).segment((8,15)).arc((3,17),(-2,18)).segment((-5,19)).segment((-6,16)).arc((-9,11),(-9,5)).close().assemble()).finalize().extrude(-26).union(w0.sketch().segment((-15,1),(-9,-15)).segment((0,-15)).segment((24,-6)).segment((9,34)).segment((2,31)).arc((-26,31),(-13,6)).arc((-14,3),(-15,1)).assemble().finalize().extrude(-22)).union(w0.workplane(offset=50/2).moveTo(15,-37).cylinder(50,13)).union(w1.workplane(offset=-10/2).moveTo(8,-14).box(54,24,10))