Combined concave three-dimensional shape
A technology of three-dimensional and concave shapes, which is applied in the field of combined three-dimensional shapes, can solve the problems of rare three-dimensional shapes, and achieve the effect of simple combination insertion, easy component manufacturing, and outstanding effects
Inactive Publication Date: 2016-08-31
宋玉远
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Problems solved by technology
[0002] At present, the known three-dimensional shapes are mostly convex, and the three-dimensional shapes with concave surfaces are rare.
Method used
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[0021] The combined concave three-dimensional shape is composed of 20 identical parts including part 1, part 2...part 20; the dotted line is used to indicate the positive folding line of the front half, that is, when folding, the front side of the paper is attached to the front side; the solid line plus a circle indicates the reverse side The anti-folding line of half-folding, that is, when folding, the reverse side of the paper is attached to the reverse side; the solid line plus a dot indicates the indicator line; the arrow line indicates the indicator line of the insertion direction, the dotted part of the arrow line indicates the inserted part, and the solid line part of the arrow line Indicates the uninserted part;
[0022] Take an equilateral triangle paper, and make the angle bisector indicator lines of the three corners, the three angle bisector indicator lines intersect at the center point of the equilateral triangle paper, and each angle bisector indicator line is per...
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The invention discloses a combined type concave three-dimensional figure, which relates to a making method of the three-dimensional figure. The combined type concave three-dimensional figure is obtained by combining 20 parts that are the same; the making method comprises the following steps of: taking a piece of regular triangular paper, making indication lines of angular bisectors, positive folding lines of midpoint linkage lines, and reversed folding lines of parallel lines; folding the regular triangular paper to be in a shape of a regular hexagon; making single-layer paper reversed folding lines and multi-layer paper positive folding lines, folding to form a part with insertion folded triangles and folded interlayer openings; inserting an insertion portion of a part 1 into an inserted portion of a part 2, if the part 1 and the part 2 are connected by means of insertion, the part 2 is inserted into a part 3, the part 3 is inserted into a part 4, a part 4 is inserted into a part 5, a part 5 is inserted into the part 1, so that a concave pentagon is formed; two parts on one side of the concave pentagon are connected by means of insertion with another three parts on the side to form a second concave pentagon, in this way, 20 parts can be connected by means of insertion to form the combined type concave three-dimensional figure with 12 concave pentagons. The combined type concave three-dimensional figure disclosed by the invention features a unique concept and regular folding; the parts are easy to make, and simple to combine and connect by means of insertion; the regular round three-dimensional figure has an outstanding concave effect, and is beautiful as well as elegant.
Description
technical field [0001] The invention relates to a method for making a three-dimensional shape, in particular to a method for making a combined three-dimensional shape. Background technique [0002] At present, the known three-dimensional shapes are mostly convex shapes, and the three-dimensional shapes with concave surfaces are rare. Contents of the invention [0003] In order to overcome the disadvantage that the existing three-dimensional shapes are mostly convex and the three-dimensional shapes with concave surfaces are rare, the invention provides a method for making a combined concave three-dimensional shape. [0004] The technical solution adopted by the present invention to solve the technical problem is: the combined concave three-dimensional shape is composed of 20 identical parts in total of part 1, part 2...part 20; [0005] Take an equilateral triangle paper, and make the angle bisector indicator lines of the three corners, the three angle bisector indicator l...
Claims
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IPC IPC(8): B31D5/04
Inventor 宋玉远
Owner 宋玉远