This is my take on the gridfinity box by pred. It's gridfinity/halfinity compatible on the bottom/top without losing the stacking functionality. I only use supports at the very base and have had best results when using a PLA/PETG interface. You can find the latches and hinges from the original model here: [https://www.printables.com/model/543553-gridfinity-storage-box-by-pred-now-parametric](https://www.printables.com/model/543553-gridfinity-storage-box-by-pred-now-parametric). I highly recommend printing the latches in TPU, it significantly improves the functionality and longevity.