The longsuffering Sears Humidifier that Came With The House once again has functioning hinges:

That’s the gluing “fixture” with enough steel piled on the lid to keep it from moving and machinist vises pushing / holding the hinge fragments in place.
I used the same technique as before, with duct tape aligning the loose pieces and JB Plastic Bonder sticking them together:

The other side of that hinge shows the broken section at the end of the molded void:

The other hinge has a 3D printed replacement end:

The other side shows there’s not much of the original hinge left:

I very carefully installed the lid on the newly cleaned humidifier in the Basement Shop, where it flips up and down like anything.
At the start of this year’s humidification season, I will very carefully carry the lid up the basement stairs to the Sewing Room and we’ll see how long it survives in actual use.