Update: I've had no issues with this design during the 2 initial months.
After 1 month my cat had learned how to quickly empty the whole puzzle so I guess new challenges has to be designed :) ....

Description

This is a single activity module that fits the format of the "TRIXIE Dog Activity" module games. I have bought a x4 module base and wanted to create a more challenging game for one of my cats.
This 3D printable module is a 3x3 shuffle puzzle with a small bowl under each shuffle brick.

You need 4 parts for the puzzle base and then add 8 bricks of your choice.
Base:
1 x "Base" + 1 x "Bowls Inner Body" + 1 x "Bowls Body Wall A" + 1 x "Bowls Body Wall B"

Printing tips

• The U-shaped walls are preferably printed with middle broadside down and "legs" on each side pointing upwards. Use a flat bed for smooth result on the outside wall that lays on the bed.
• Print the bottom brick part on a flat bed to avoid scratching sound when pet is playing.
• When printing the middle part of the bricks: That part do only have one truly flat side. The other side slightly differs in height.

Bricks

Each brick is made of three separate parts that snaps together with no need for glue.
"Brick Bottom" + "Brick Middle" + any "Brick Face" on top
There are two sets of brick faces:

1. TicTacToe theme
2. Scientific theme

Assembly

1. Print 8 pieces of each brick parts (bottom + middle + face)
2. Just put all the bricks together like LEGO but needs more force.
   (I did carefully stand on them with flat shoes on until no more click sound was heard.)
3. Note! The walls should be mounted on the "Bowls Inner Body" BUT a small design mistake made that mount non-symmetric so please first just try out witch wall goes where on the "Bowls Inner Body"
4. With the wall not mounted. Put the walls up-side-down pointing towards each other.
5. Now put the bricks (also up-side-down) inside the walls. (see picture)
6. Carefully lift up the walls with all bricks squeezed together and turn the whole thing right-side-up.
7. Mount the walls on the "Bowls Inner Body" dove tails.
8. Now mount everything on top of the "Base"

Avoid using very small or thin pieces of food/treat for this game. It might get stuck in the nooks and crannies when your pet is playing, preventing the bricks from sliding.

Filament color:

I used Bambu Labs PLA Matte "Dark Blue" for the base, bowls and walls.
The Bambu Labs PLA Matte "Marine Blue" for the bricks.
This looks really good together with the original modules.