Polyhedron Joint for Cardboard Pipes

Polyhedron Joint for Cardboard Pipes

prusaprinters

<h3>Completed regular polyhedron connector joints</h3> <p>They are polyhedron vertex connectors, including<em>all</em> of five regular polyhedrons in the universe, for pipes with 38mm inner diameter</p> <p>They are single vertex joint, so you need to print them according to number of vertex of each polyhedra. Here's a table:</p> <p>name of the polyhedron ---- filename ----- vertexa (how many you need to print)</p> <p>tetrahedron (4 faces) ---- tetrahedron_joint_big v1.stl ----- 4</p> <p>hexahedron (6 faces, a cube) ---- hexahedoron_joint v3.stl ----- 8</p> <p>octahedron (8 faces, aka tetratetrahedron) ---- tetratetra_v3.stl ----- 6</p> <p>dodecahedron (12 faces) ----- dodecahedron-12.stl ------- 20</p> <p>icosahedron (20 faces) ------ polyhedron_with_20_faces-3.stl ------12</p> <p>The last two files, dodecahedron-12.stl and polyhedron_with_20_faces-3.stl are created by john3d ( <a href="/john3d/designs">https://www.thingiverse.com/john3d/designs</a> ) and these are for 18mm PVC tubes so you need to increase at 227% for 38mm pipes with PLA, 229% with ABS. Their original files are <a href="https://www.thingiverse.com/thing:3712839">https://www.thingiverse.com/thing:3712839</a> .</p> <p>I could print them with 5% infill (gyroid) with 0.6mm nozzle with enough strength. Actually it has more strength than 10% rectilinear infill (with 0.4mm nozzle), the latter has been broken by rough handling of 1st grade students.</p> <hr/> <h3>すべての正多面体が作れるパイプジョイント</h3> <p>この世に正多面体は5種類しか存在しません。そのすべてが市販の紙管(内径38mm)で作れるように、5種類のジョイント部品を用意しました。これらは立体の頂点になるパーツです。紙管が辺になります。</p> <p>正多面体名 ---- ファイル名 ----- 頂点数(必要プリント数)</p> <p>正四面体(三角錐) ---- tetrahedron_joint_big v1.stl ----- 4</p> <p>正6面体 (立方体) ---- hexahedoron_joint v3.stl ----- 8</p> <p>正8面体 ---- tetratetra_v3.stl ----- 6</p> <p>正12面体 ----- dodecahedron-12.stl ------- 20</p> <p>正20面体------ polyhedron_with_20_faces-3.stl ------12</p> <p>正12面体と正20面体のパーツはjohn3dさんのhttps://www.thingiverse.com/thing:3712839/files のものです。これらは18mmチューブ用に作られているそうで、こちらで38mm紙管用にプリントする際には227%(PLA用)または229%(ABS用)に拡大する必要がありました。</p> <p>上の3個は、パイプ内に入る部分の径が最大39mmになるように作ってあります。これはABSでぴったりに設計してあるので、PLAでは1%か2%縮小する必要があると思います。(ABSでしかプリントしてないので具体的データがありません。プリントした方はコメントに書いていただけると嬉しいです。)</p> <h3>Print Settings</h3> <p><strong>Printer:</strong></p> <p>Kingroon KP-3, Zonestar P802QR, TRONXY X5SA</p> <p><strong>Rafts:</strong></p> <p>Doesn't Matter</p> <p><strong>Supports:</strong></p> <p>Yes</p> <p><strong>Resolution:</strong></p> <p>0.2 with 0.4 nozzle 〜 0.4 with 0.6 nozzle</p> <p><strong>Infill:</strong></p> <p>5% to 25%</p> <p><strong>Filament:</strong> ANYCUBIC, DORACOS ABS, PLA</p> <p>any</p> <p><strong>Notes:</strong></p> <p>tetra, hexa, outa connectors are designed for ABS so you should shrink them by 1 to 2 percent for other materials.</p> Category: Math Art

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