Basics nke 3D-ịme ngosi uwe: esi mee ka ihe icosahedron si a akwụkwọ

Otu n'ime ndị kasị ewu ewu na ebe na Origami bụ a 3D-ịme ngosi uwe. Ịmepụta a atọ akụkụ ọgụgụ were uche nke bụghị naanị ụmụ kamakwa ndị okenye. Ọ bụrụ na ị na-ama mụtara mfe atụmatụ na usoro na mụtara mee ka ọ dịkarịa ala a cube nke akwụkwọ, ị pụrụ ịga n'ihu ihe mgbagwoju ụdị. Ọ kasị mma na-eme ka ike a na-akpọ "-akụzi si gbasaa solids". E nwere nanị ise: na tetrahedron, icosahedron, hexahedron, dodecahedron na octahedron. All ọgụgụ bụ mgbe polyhedra, nke dabeere mfe geometric shapes. Taa ị ga-amụta otú e si eme ihe icosahedron si a akwụkwọ.

The ndepụta nke ihe na ngwaọrụ

• A mkpa mpempe akwụkwọ nke acha katọn (họọrọ njupụta - 220 g / m ^2).
• Nkọ mkpa ma ọ bụ mma agụmakwụkwọ.
• Simple pensụl ekweghị ekwe nke HB.
• Long osisi onye na-achị (dịkarịa ala, 20 cm).
• Nchicha.
• Liquid mama PVA ma ọ bụ pensụl.
• Ahịhịa.

ntụziaka

1. Ya mere, olee ka icosahedron si a akwụkwọ enweghị ịgụ isiokwu bụ ekwe omume, ọ ga-hụrụ na e biri ebi na a mpempe akwụkwọ ma ọ bụ ise site n'aka. Template 20 bụ nke equilateral triangles ejikọrọ na a pụrụ iche usoro. Dị ka free n'ọnụ ya dị mkpa iji nye a obere indentation maka bonding.
2. Ị pụrụ ịmalite na n'ilu ọlu. Ọ bụrụ na ị na-aga na-eji a mma, jide n'aka na-arụ ọrụ na roba ute maka prototyping, iji gbochie mmebi nke osisi n'elu table.
3. Ọ bụrụ na ị chọrọ iji zere unsightly kinks na nzukọ ahụ, tinyere edoghi nke folds na-eje ije na a nkọ ihe. Nke a ga-eme ka ihu ihe doro anya na-eji ire ụtọ.
4. Gaba nzukọ. Tee a edo oyi akwa nke mama na kwesịkwara iburu n'uche na na-amalite na-akpụ udi. Ya mere, olee ka icosahedron si a akwụkwọ naanị bụ nnọọ ike, na ọ bụ mma-arịọ maka enyemaka si na a enyi. Iji ọdachi nke na-ama aka ufọk, ha mkpa ha na-jide n'otu oge na-arapara ọnụ na n'akụkụ ndị ọzọ. The ikpeazụ ekweghị ekwe nke nlereanya ga-enweta na njedebe nke nzukọ. Gluu abụọ ikpeazụ hardest mejupụtara. Ha kwesịkwara iburu n'uche ga-abịa ọnụ n'ime udi, mgbe ike mgbali ụdị nwere ike ida elasticity. Ghara kwatara akwata na anya nke icosahedron, ikpeazụ n'akụkụ mkpa arapara ọnụ, ọ bụghị ekwe ihu na njedebe, na mgbe ahụ jiri nwayọọ inupụ ha n'ime.

Ọ bụrụ na ị kpamkpam achọpụtabeghị esi mee ka ihe icosahedron si a akwụkwọ, i nwere ike na-eme na nzukọ ihe mgbagwoju nlereanya - a truncated icosahedron. Nke a na ọnụ ọgụgụ na-agụnye 32 mejupụtara 12 equilateral pentagons na iri abụọ mgbe hexagons. Na okokụre ụdị, na na ziri ezi agba? Dị yiri nnọọ a bọl bọl mere nke akwụkwọ. nzukọ ụkpụrụ ndị yiri, naanị iche dị na ụkpụrụ. Iṅomi truncated icosahedron bụ nnọọ mgbagwoju anya na-ewu, ya mere na ọ bụ ihe kasị mma na-ebipụta ya na ngwa nbipute. Akwụkwọ kwesịrị ịhọrọ nnọọ uko, ma ọnụ ọgụgụ ha ga na-udi, na ike na-etolite Ikuku na ala nsogbu.

Origami na 3D-ịme ngosi uwe - a oké ụzọ na-emefu a friendly ma ọ bụ ezinụlọ n'abalị. Ndị a na klas inye ezi ọgụgụ isi ndabere na-enyere ịzụlite gbasara ohere pụrụ ichetụ n'echiche.