The funny multiplication wheel

Using Fusion 360, I've designed and 3D printed a fun tool for reviewing multiplication tables from one to twelve. Turn the wheel with the crank to select the table you want to memorize. 

Except for step 2, which may require the help of an adult, a child can also have fun assembling it before starting to review the multiplication tables.

All parts are printed in PLA. I supply .stl, .3mf and .gcode files.

I'm making the .step and .f3d files available so that you can adapt the tolerances to your needs and play with my model to adapt it as you wish.

1. Print all files
    
2. assemble “Base_engrenage_central” with a spur gear (use a little force, they must be joined together). 
   
   
   
    
3. Place the 3 remaining gears on the base (file “Base_satelittes” ), they must turn freely without constraint around the axis and place the 3 identical nuts (file “Ecrou_d10_satelittes”) so that they don't fall off. 
   
   
    
4.  Place the “Base_engrenage_central”+"spur gear" (from step 2) on the center of the “Base_satelittes” file. Mount the crank (file “Poignee_manivelle”) in the previous assembly as shown in the picture.
   
   
    
5. Place the crown wheel (file “Couronne”) as shown in the following picture.
   
   
    
6.  All that's left to do is close the lid of the box over the whole thing.
   

Ready to learn 😊