import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,43,0))
r=w0.sketch().segment((-50,-2),(-49,-2)).segment((-49,-15)).segment((-32,-15)).segment((-32,-21)).segment((32,-21)).segment((32,-15)).segment((49,-15)).segment((49,-2)).segment((50,-2)).segment((50,2)).segment((49,2)).segment((49,15)).segment((32,15)).segment((32,21)).segment((-32,21)).segment((-32,15)).segment((-49,15)).segment((-49,2)).segment((-50,2)).close().assemble().finalize().extrude(-85)