Note 1: The chests are meant to be printed using a multicolor printer, so you should download the STEP files and assign colors to respective components (instead of downloading the STL files).

Note 2: Print the separate parts in the 3D View orientation shown above for minimal supports. You may have to edit the diameter of the bottom studs or hinges depending on your 3D printer (I used a Bambu Lab X1C with AMS, Bambu PLA).

Disclaimer: I am not associated with any of the following legal entities: LEGO®, Minecraft®. There is no intention to infringe on any of their intellectual property.