BLENDER

One of the students from the Croatian team, Borna, made a tutorial for Blender - a program used for 3D modeling.
Watching the video will make it easier for you to understand how the program works.

THINKERCAD

You can watch the tutorial video about the 3D modeling program Thincercad.

https://youtu.be/QIn9c5TjrKk?t=4

We look forward to your works!

Good luck, everyone!