This is a cube maze puzzle where you need to navigate a ball through channels. Only one entrance and one exit. It doesn't matter which way you start.

The size is approximately same as a common Rubics cube. This will be an easy puzzle for an under 10 year old, who can most likely manage to do in couple of minutes.

I am using a 7 mm ball-bearing steel ball I bought from Amazon. Make sure you resize the ball if you scale the model. ([https://amzn.to/3MvQoxX](https://amzn.to/3MvQoxX)).

It can be printed without support, but some support is recommended. The gcode I have uploaded below is with tree supports, please refer orientation of this gcode to minimise supports. Some of these supports needed to be removed with a long noze pliers. I used the nose pliers that came with my Prusa printer. 

I have uploaded two pictures of my make The grey one is the uploaded stl and the white one is the previous revision. 

Updated : 

Added a sphere model for those who wants to print one. I have not figured out how to slice this to get a smooth ball yet. But if you do please let me know. I can add that here.