The fundamental issue here is that a fillet cannot wholly consume another edge.
It’s always worth doing your fillets last, but the other thing I would say is, where a fillet or chamfer is more than presentational as it were, build it into a sketch. Or cut it with a groove. Those operations are more reliable in OCC.
It’s always worth doing your fillets last, but the other thing I would say is, where a fillet or chamfer is more than presentational as it were, build it into a sketch. Or cut it with a groove. Those operations are more reliable in OCC.