Homemade Pyramids

Save

Pyramids are interesting shapes than can be used for a variety of non-conventional home and garden projects. There are two main types of pyramids: the square pyramid and the tetrahedron. The angles on each pyramid, particularly the sides, are not 90 degrees and special considerations have to be made during design to ensure proper construction.

Types

  • Home pyramids come in a variety of sizes and are usually based on the square pyramid dimensions of the Great Pyramid of Giza, Egypt. A square pyramid has a square base and four triangle sides. Like the ancient Egyptians, some people believe that objects placed inside square pyramids receive special powers. Experiment for yourself.

    Another distinctive pyramid is the tetrahedron- all three sides and the base are identical triangles (equilateral). Tetrahedrons are fun because all sides are the same.

Geometry

  • The dimensions of the Pyramid of Giza are aesthetically pleasing. The slope of the four sides are each 51.8 degrees. The triangular sides come together at the top, known as the apex. The dihedral angle--used to make miter joints in woodworking--is slightly over 76 degrees (http://www.earthmatrix.com/great/pyramid.htm).

    A tetrahedral pyramid is made of four identical equilateral triangles (all sides the same length). The dihedral angle for a tetrahedron is about 70 degrees.

Solid, Stick and Sheet Pyramids

  • To make a solid pyramid out of wood or plastic, use a table or miter saw. To make a "golden" pyramid:
    Step1: Set the saw blade angle at 51.8 degrees
    Step 2: Pass each side of a square block through the blade.

    To make a stick square pyramid:
    Step 1: Join four sticks to form the square base. The four edges of the sides can be the same length, but for a true Giza pyramid, the sides are slightly shorter than the base edges (22:23).
    Step 2: Joint the side sticks to each corner.
    Step 3: Raise the side sticks to the apex and join.

    Each side makes a triangle with an apex angle of 63.5 degrees and the two base angles should be 58.3 degrees.

    To make a pyramid out of flat stock like board lumber, use the angles for the triangle sides from above. Miter the sides so the edges will fit together. The bottom or base side is cut at 51.8 degrees, and the edges where the triangles join must meet at the dihedral angle of 76 degrees; the sides that join the faces have to be cut at half that angle (38 degrees) to fit properly. For a tetrahedral pyramid, use a dihedral angle of 70 degrees for each of your identical triangles.

References

Promoted By Zergnet

Comments

You May Also Like

  • How to Make Homemade Pyramids Out of Foam

    When you mention pyramids, many people think about the Great Pyramids of Giza. The pyramid is a classic geometrical shape and the...

  • How to Make a Cardboard Pyramid

    A pyramid is a building or object made out of several triangles sitting on a base and angling in to meet at...

  • How to Make Pyramid Crafts

    Making pyramid crafts is a lot of fun--they are often used for reinforcing lessons about Egypt and other places around the world....

  • How to Make a Pyramid for School

    Making a pyramid for school is a fun and easy project. You can make a simple pyramid or you can go into...

  • How to Build a Pyramid Planter for Strawberries

    Build a strawberry pyramid planter to help you save space in your garden. Whether you need to overcome limited square footage or...

  • How to Build a Wood Pyramid Box

    Pyramids have fascinated us for centuries, with their grand scale, and the mystery surrounding their construction. While the construction techniques of the...

  • How to Calculate Pyramid Angles

    Used in many structures, temples and tombs around the world, the square pyramid has contributed to countless human constructions. Pyramids are polyhedrons...

  • How to Make a Tetrahedron

    A tetrahedron is a geometrical shape made from four equilateral triangles. An equilateral triangle is a three-sided shape of which all three...

  • How to Make a Paper Pyramid

    Making a paper pyramid involves tracing a perfect square, tracing four identical triangles around the square, adding flaps to each triangle, cutting...

Related Searches

Check It Out

22 DIY Ways to Update Your Home on a Small Budget

M
Is DIY in your DNA? Become part of our maker community.
Submit Your Work!