Yarn: net.minecraft.client.model.Cuboid -> ModelPart

[Runemoro]

It's not a cuboid, it can be composed of several boxes and has rotation point information. Then, net.minecraft.client.model.Box (which actually is a cuboid shape) should be renamed to Cuboid to avoid conflicting with net.minecraft.util.math.Box.

[Prospector]

Would even just Part be too generic? Seems a bit strange to have a model prefix when nothing else really does

[Sollace]

I wouldn't change Box. Box is the perfect name for it.

ModelPart is okay, though I'd suggest the variationsModelSubPart, SubPart.

Other names like BoxSet, BoxList, RotatedBoxSet and RotatedBoxList all fit as well.

[Pyrofab]

The model Box name is not great, because it conflicts with the utility box. And it never contains anything, so I think Cuboid is more appropriate.