This Puzzle Cube has one path from start(large rectangle) to end (smaller rectangle) that passes through 3 cones/numbers meant to unlock a 3 digit lock.  The final combination starts in the large rectangle and passes through 3 numbers and ends in the small rectangle.

 I left the numbers as separate files so that you could change the final combination to match your own lock.  The combination that the maze in the pictures is 377, Hopefully with the pictures you are able to see the solution so you can set up a new combination of your choice.

Print Settings:

 0.2mm layer height for the cube,

0.15mm  layer height for the numbers