HobbyNeedlework

How to make a dodecahedron with your own hands?

The dodecahedron is a very unusual three-dimensional shape, consisting of 12 identical faces, each of which is a regular pentagon. To assemble a dodecahedron with your own hands, you do not need to have special 3D modeling skills , even a child can cope with this task. A little skill, and you will definitely succeed!

Required materials and tools

  • A sheet of white and colored paper. The optimum density is 220 g / m 2 . Very thin paper crumples too much when assembled, and very thick cardboard is broken on the folds.
  • Deployment of the dodecahedron (template).
  • Slim stationery knife or very sharp scissors.
  • A simple pencil or marker.
  • Protractor.
  • The long ruler.
  • Liquid glue.
  • Brush.

Instructions

  1. If you have a printer, you can print the template right on the sheet, but you can draw it yourself. Pentagons are constructed with a protractor and ruler, the angle between adjacent lines should be exactly 108 °, choosing a length of the face can make a large or small dodecahedron. The sweep represents 2 connected "flowers", consisting of 6 figures. Be sure to leave small allowances, they are needed for gluing.
  2. Carefully cut out the workpiece with a pair of scissors or a knife on a special rubber mat, so as not to damage the surface of the table. Next, walk through the folds of the sharp angle of the ruler, this will make it much easier to assemble the figure and make the faces more accurate.
  3. Using a brush, apply a little glue on the allowances and collect the figure by bending the edges inwards. If you decide to make a dodecahedron with your own hands, and not even an adhesive tape was at hand, cut out the allowances of one half of the template in the form of elongated triangles, and on the folds of the second part make small incisions. Then simply insert the edges into the grooves, and the structure will hold firmly.

A ready figure can be painted or decorated with stickers. A large model can be turned into an original calendar, because the number of parties corresponds to the number of months in a year. If you are fond of Japanese applied art, you can make a dodecahedron with your own hands in the modular origami technique.

  1. Prepare 30 sheets of plain office paper. Well, if they are colored and two-sided, you can choose several shades.
  2. Manufacturing of modules. Mentally draw a sheet into four identical strips and fold an accordion. Fold the corners in one direction in opposite directions, the resulting figure should resemble a parallelogram. It remains to bend the workpiece along a short diagonal. Make 30 modules and start assembling.
  3. The dodecahedron has 10 nodes, each consisting of three elements. Prepare all the pieces and put them into each other. To ensure that the modules do not move apart, fix the joints with paper clips, when you completely assemble the figure, they can be removed.

Once you master the technique you like, you can teach how to assemble your dodecahedron with your own hands by your child or comrade. After all, the production of three-dimensional figures not only develops the motor skills of the fingers well, but also forms spatial imagination.

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