as requested on support…
Given the request to make a hatch cover with a chamfered edge, and a hinge, one first draws up the geometry in question:
Then model the chamfer, which will require an addition piece of geometry:
Then model the rounded form of the hinge:
It will be necessary to shorten the hinges to meet the rounded form:
OK
OK
Use Join Vectors to close:
Model them to an equal thickness:
Apply
Draw in additional geometry to allow removing what is not wanted: