Basics na 3D-tallan kayan kawa: yadda za a yi wani icosahedron daga wata takarda

Daya daga cikin mafi mashahuri inda ake nufi a Origami ne a 3D-tallan kayan kawa. Samar da wata uku-girma Figures kama hankalin ba kawai yara har ma manya. Idan ka riga ƙware da sauki makircinsu, kuma dabaru da kuma koya yin akalla wani shigen sukari fitar da takarda, za ka iya matsa wa mafi hadaddun model. Shi ne mafi kyau yi don ƙirƙirar wani da ake kira "Platonic daskararru". Akwai kawai biyar: da tetrahedron, icosahedron, hexahedron, dodecahedron da octahedron. All Figures ne na yau da kullum polyhedra, wadda ake bisa sauki lissafi siffofi. Yau za ka koyi yadda za a yi wani icosahedron daga wata takarda.

A jerin kayan da kayan aikin

• A bakin ciki takardar na launin kwali (fi so yawa - 220 g / m ^2).
• Sharp almakashi ko wuka stationery.
• Simple fensir taurin HB.
• Long katako m (a kalla 20 cm).
• Magogi.
• Liquid manne PVA ko fensir.
• Brush.

umurci

1. Saboda haka yadda za a yi wani icosahedron daga wata takarda ba tare da scanning ba zai yiwu, dole ne a samu da kuma buga a kan takardar ko zana da hannu. Samfuri 20 ne na equilateral triangles alaka a wani musamman jerin. Bisa ga free gefuna shi wajibi ne don samar da karamin indentation for bonding.
2. Za ka iya fara sassaƙa. Idan za ka yi amfani da wuka, a tabbatar da aiki a cikin roba mat ga prototyping, su hana lalacewar da katako, surface na tebur.
3. Idan kana so ka kauce wa unsightly kinks a cikin taron jama'a, tare da Lines na folds yi tafiya tare da kaifi abu. Wannan zai sa baki mafi bayyana da kuma m.
4. Ci gaba zuwa taron. Aiwatar da wani uniform Layer na manne a kan alawus da kuma fara ulla wannan siffar. Saboda haka yadda za a yi wani icosahedron daga wata takarda kadai ne wuya, shi ne mafi alhẽri nemi taimako daga wani aboki. Don gãɓar rãmi ba ya tafi gida, suna bukatar su rike a lokaci guda zuwa tsaya tare da sauran sassa. A karshe taurin model zai saya a karshen taron. Manne karshe biyu da mafi wuya fuskoki dabam-dabam. Su alawus dole zo tare a cikin siffar, yayin da karfi matsa lamba form iya rasa elasticity. Domin kada ya ganimar da look na icosahedron, na karshe gefen bukatar tsaya tare, ba lankwasawa da baki zuwa karshen, kuma sa'an nan a hankali tura su a ciki.

Idan ka yi gaba daya fitar da siffa yadda za a yi wani icosahedron daga wata takarda, za ka iya gudanar da aiki a cikin taro mafi hadaddun model - mai truncated icosahedron. Wannan adadi ya hada da 32 fuskoki dabam-dabam 12 equilateral pentagons da ashirin na yau da kullum hexagons. A ƙãre form, kuma tare da daidai canza launi ne sosai kama da wani kwallon kafa ball sanya daga takarda. taro ka'idojin ne irin wannan, kawai da bambance-bambance a cikin abin kwaikwaya. Duba truncated icosahedron ne sosai rikitarwa a yi, don haka shi ne mafi kyau a buga shi a kan firintar. Takarda kamata zabi sosai m, in ba haka ba adadi ba zai ci gaba da siffar, da kuma iya samar da depressions a cikin ƙasa matsa lamba.

Origami kuma 3D-tallan kayan kawa - mai girma hanyar ciyar da wani m ko iyali dare. Wadannan azuzuwan samar da mai kyau ilimi bango da kuma taimakawa wajen samar da sarari kwatanci.