There is a winding, twisting three-dimensional path inside this cube that can take the marble from point A to point B. There are small labels on the corners of the starting and ending points. This maze is almost a labyrinth

The size of this cube is 59 x 59 x 59 mm, and the diameter of the marble is 12 mm.

Update:ma-uniqueHe pointed out to me that his cube maze design is very similar to mine. Please take a look at his excellent work published in 2020.Challenger Cube。

Print
Both the cube and the marbles are printed in one piece, without the need for supports. Use a layer height of 0.2 mm and a line width of 0.5 mm. The marbles

Update:
By printing the marbles inside the cube so that they are the same color as the cube, it becomes harder to see what's happening. I've just added files for printing the marbles and the cube separately, so you can make the marbles different colors. First, print the marbles, then when printing the cube, pause the printing between heights of 12 to 14 millimeters, and continue printing after placing the marbles back in their starting positions.

Play
The starting position is in the front lower-left corner, marked with a small label. The ending position is in the back lower-right corner, marked with another small label. Tilt the cube to make the marble roll along the path. If you're bored and want to cheat, I've also included an STL file that only contains the pathNot includedThere are a few dead ends, so even if you cheat, you still need to be careful!