This is Hrein's for TI4 and the Prophecy of Kings expansion with some modification by me. The description is copied directly from Thingiverse with my changed in bold. The excess space left in the models by Hrein allowed me to modify them what keeping the same layout while fitting that little bit more into the box.

Printing Notes:

When slicing, you will need to change the surface the Exploration Cards Lid is printed on. You can print the Faction Tokens in two ways. I recommend upside-down of how it is imported into the slicer. If you print it in the way it imports, please use supports.

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I decided to make my own version as I wanted a container that kept the faction cards separate from the tokens, and also separate the action tokens from the flag tokens. Also I wanted space for the extra dice for each player colour.

Everything fits perfectly in the box with no noticeable lift, and the insert is designed for sleeved cards (I use the Fantasy Flight sleeves. Sleeve Kings work well for me). The rulebooks and player boards fit on top of the insert.

Print the following:

19x Faction Cards
19x Faction Tokens (may need support)
6x Faction Cards (Extra)
6x Faction Tokens (Extra) (may need support)
8x Player Pieces
8x Player Pieces FM
1x all other files

The reason for the Faction Cards (Extra) and Faction Cards (Extra) is for the 5 factions that have their own extra tokens (Ghosts of Creuss, Naalu Collective, Nekro Virus, Titans of Ul, Vuil'raith Cabal). I've also included a picture to show how I organized the cards and planet tiles. Player Pieces FM is the small container that holds the fighters and mechs and slides into the Player Pieces box.