The Very Basics
3D Geometrical Shapes

	The following models are the bases of most 3D geometrical and real life structures.

Below images illustrate the steps to build the smallest Goobi sphere, with 30 bars and 12 balls.

Figures 10, 11 & 12 present the steps for building triangle, square and pentagon base towers, which can be used in various constructions. The same concept can be used to build many other polygon base towers and skyscrapers. The towers can be used as individual structures (see page 25) or as a part of another complex construction - such us tree trunks (see page 24).

By following the basic instructions (see page 6) one can save time in building stronger pyramid structures. The magnetic strength of Goobi bars make it possible to hang and spin a Level 3 Pyramid using an additional bar attached to the top vertex of the pyramid as shown in Figure 13. For hanging and spinning purposes the top 3 ends of the vertex bars should have the same polarity. Moreover, for longer spinning time use a second ball in between the top vertex ball and the additional Goobi bar.

Endless fun and creativity continues...