A toy designed by a cognitive psychology student who has been involved in science communication for years

(haha yes, me, but in 3rd person).

This toy is a sand sieve.

Children who play with this toy will learn how filters work: they'll see sand magically appear inside the sieve when they press it against the sand, but if they use it as a shovel, they'll discover that the sand will fall out of the holes, leaving only the larger objects in the cat's mouth: shells, pieces of wood, and leaves.

Education according to the constructivist model:

Children learn more easily if they can experience things directly and interactively. It's very important that children develop creativity and problem-solving skills from a very young age for their future well-being!

Challenges for the child:

Try to help the child discover how the dynamics of play change if the sand is wet, almost dry, or completely dry.

PRINTING SETTINGS:

no supports, no brim.

Use ABS (300mm/s fast ABS is ok too),

40% infill (child-proof...).

It's normal to find a file called "version two, v2" this model is already version 2, which means I made it stronger and easier to print while testing it.

MULTICOLOR

You can use a CFS (or AMS or MMU3): import both the models (frame and parts) as a single object with different parts (or use FULL cat with separated parts.stl), it will be easier to manage different colors.

No CFS? No problem: print the main frame, then change the filament and print the other 11 files (cat_color_details_number.stl). Assembly if you are not using a multicolor automatic system: use a bit of glue.

Commercial license:

Yes, you can print and sell this 3D model.

You can also use it for renderings and video games!

You cannot redistribute the individual model or its parts;

you can only sell physical prints, videogames or renderings.

Messages from the author:

Hi!! I added a new version (the 3rd actually!).

The previous version was all about improve strength and durability!

This time I've added two different types of teeth that can be added either for slicing or by gluing in a future moment! You can decide if, how, and when to customize it.

Cat That Eats Sand a funny cute summer toy

0.2mm layer, 2 walls, 15% infill