TinkerCAD is a great online 3D modelling programme, which can be used by anyone, including children and beginners in the field of 3D modelling and 3D printing.
This is also a very useful, simple and user-friendly tool for those who want to design or customise educational robots.
In this tutorial we present more advanced functionalities of this programme: using additional workplane using a ruler, aligning and grouping the objects. They can be used in working with any type of robots you have in mind.
You can use it even with the primary school kids as introducing to 3D design and 3D printing.