import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-50,0))
r=w0.sketch().push([(-62,10)]).circle(38).circle(34,mode='s').reset().face(w0.sketch().segment((37,-32),(51,-32)).segment((51,-48)).segment((86,-48)).segment((86,-32)).segment((100,-32)).segment((100,-28)).segment((86,-28)).segment((86,-12)).segment((51,-12)).segment((51,-28)).segment((37,-28)).close().assemble()).finalize().extrude(100)