val/106.py

import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-46,0))
r=w0.workplane(offset=-54/2).moveTo(-35,8).cylinder(54,30).union(w0.sketch().segment((-82,64),(-15,-63)).segment((-6,-58)).arc((82,-26),(-9,-8)).segment((-55,79)).close().assemble().finalize().extrude(146))