This is a remix of this model on Thingiverse https://www.thingiverse.com/thing:4436613
I found out about these mergecubes recently. There were a few 3d models but none exactly like I wanted so I modified one for my own. I recessed the white parts of the pattern into the cube instead of having them sticking out and combined it all into one piece.
The cube is 74mm^2. The solid version took ~12 hours to print at 0.2mm layer height and 20% infill. I printed it in transparent PLA because that was the closest thing I had to white. I saw a reddit post that printed the cube and coloured in the sides with black marker, so I tried that quickly on one side to teset it. Even though the print absorbed a lot of the ink and it endedd up grey, it surprisingly worked really well.
I made two versions, one solid cube and one with indiviual faces to be stuck together. I modified the brace of the original to be used to stick the individual faces together.
The creator of the original version also included a pdf that can be printed and cut out to create the cube in paper