Cube

Design 3D Shapes: The Cube!

Instructions

Choose a size and make 1 Squeare Base, 2 Side Faces, 1 Single Edge in the same size.

Read every step before joining any pieces, and be sure to understand how it works. You can use pieces from other steps to help yourself check the geometry and join with the right angles.

Attach each Side Face perpendicular (90º) to Full Triangle at A, B with a small bead.

Attach every Single edge to both Side Faces at C with a small bead.

Done!

Icosahedron

Design 3D Shapes: The icosahedron!

Instructions

Check the diagram, read every step before joining any pieces, and be sure to understand how it works. Take your time if needed, this a bit harder to visualize than the cube… With this method, first you’ll build a “core” of the icosahedron, and then add the remaining faces. As in dodecahedron, it is pretty important to check that all edges of each pentagon are in the same plane.You can use pieces from other steps to help yourself check the geometry and join with the right angles.

Choose a size and make 1 Structure Pentagon-1, 1 Structure Pentagon-2, 1 Structure Pentagon-3 and 2 Structure Bottoms.

Attach Structure Pentagon-1 to one Structure Bottom, 101º angle, as the diagram shows, with a small bead. You can use Structure Pentagon-2 (step 4) to check the angle, or attach them at the same time.

Attach Structure Pentagon-2 symmetric to the last one, as the diagram shows, with a small bead.

Attach Structure Pentagon-3 as the diagram shows, with a small bead. Check that the three side faces are three regular, planar pentagons.

Finish the structure by attaching on top the second Structure Bottom triangle, as the diagram shows, with a small bead.

Make 6 Final Faces and 3 Final Edges in the same size as the other pieces.

Build the pyramids on each pentagon of the structure (3) by attaching 2 Final faces and 1 Final Edge on each one, as the diagram shows. The angle between faces and pentagon is 32º, you can attach two pieces at the same time to check that it is right.

Octahedron

Design 3D Shapes: The octahedron!

Instructions

Choose a size and make 1 Square Base, 2 Side Faces and 2 Closing Edges in the same size.

Check the diagrams, read all the steps before joining any pieces, and be sure to understand how it works. You can use pieces from other steps to help yourself check the geometry and join with the right angle.

Attach two pieces of Side Faces to the Square Base at A, B, 55º angle between faces, with a small bead; you can check the angle by joining them at the same time.

Turn the structure upside down and repeat step 3 on the other side of the Square Base.

Done!

Tetrahedron

Design 3D Shapes: The tetrahedron!

Instructions

Choose a size and make 1 Full Triangle, 1 Two edges, 1 Single edge in the same size.

Read all the steps before joining any pieces, and be sure to understand how it works. You can use pieces from other steps to help yourself check the geometry and join with the right angle.

Attach Two edges to Full Triangle at A, C, 71º angle between faces, with a small bead. You can use Single edge (step 4) to check the angle.

Attach Single edge to Full Triangle at B and Two edges at D with a small bead.

Done!

Dodecahedron

Design 3D Shapes!

Instructions

Choose a size and make 1 Initial Face, 1 Second Face, 4 First Level Faces, 4 Second Level Faces and 1 Closing Edge in the same size.

Check the diagram, read every step before joining any pieces, and be sure to understand how it works. You can use pieces from other steps to help yourself check the geometry and join with the right angles. In this polyhedron it is very important, not only diedric angle (117º), but also to check that every face is a regular pentagon, and that all edges of each face are in the same plane.

Attach Second Face to Initial Face, 117º angle, with a small bead. You can use a First Level Face (step 4) to check the angle, or attach them at the same time.

Attach one First Level Face to the structure, as the diagram shows, with a small bead. Attach 2 First Level Faces more.

Complete half dodecahedron by attaching one Second Level Face, as the diagram shows, with a small bead.

Start the second half by attaching the last First Level Face, as the diagram shows, with a small bead. You can use a Second Level Face (step 7) to check the angle, or attach them at the same time.

Attach 3 Second Level Faces, as the diagram shows, with a small bead.

Finish the structure by attaching the Closing Edge, as the diagram shows, with a small bead.