76 lines
3.2 KiB
OpenSCAD
76 lines
3.2 KiB
OpenSCAD
//
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// NopSCADlib Copyright Chris Palmer 2018
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// nop.head@gmail.com
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// hydraraptor.blogspot.com
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//
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// This file is part of NopSCADlib.
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//
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// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
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// GNU General Public License as published by the Free Software Foundation, either version 3 of
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// the License, or (at your option) any later version.
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//
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// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along with NopSCADlib.
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// If not, see <https://www.gnu.org/licenses/>.
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//
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//
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//! Just a BOM entry at the moment and cable bundle size functions for holes, plus cable ties.
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//
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include <../utils/core/core.scad>
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include <zipties.scad>
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module wire(colour, strands, length, strand = 0.2) //! Add stranded wire to the BOM
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vitamin(str(": Wire ", colour, " ", strands, "/", strand, "mm strands, length ",length, "mm"));
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module ribbon_cable(ways, length) //! Add ribbon cable to the BOM
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vitamin(str(": Ribbon cable ", ways, " way ", length, "mm"));
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//
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// Cable sizes
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//
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function cable_wires(cable) = cable[0]; //! Number of wires in a bindle
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function cable_wire_size(cable) = cable[1]; //! Size of each wire in a bundle
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// numbers from http://mathworld.wolfram.com/CirclePacking.html
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function cable_radius(cable) = [0, 1, 2, 2.15, 2.41, 2.7, 3, 3, 3.3][cable_wires(cable)] * cable_wire_size(cable) / 2; //! Radius of a bundle of wires, see <http://mathworld.wolfram.com/CirclePacking.html>.
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function wire_hole_radius(cable) = ceil(2 * cable_radius(cable) +1) / 2; //! Radius of a hole to accept a bundle of wires
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function cable_bundle(cable) = //! Arrangement of a bundle in a flat cable clip
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[[0,0], [1,1], [2,1], [2, 0.5 + sin(60)], [2,2], [3, 0.5 + sin(60)], [3,2]][cable_wires(cable)];
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function cable_width(cable) = cable_bundle(cable)[0] * cable_wire_size(cable); //! Width in flat clip
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function cable_height(cable) = cable_bundle(cable)[1] * cable_wire_size(cable); //! Height in flat clip
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module mouse_hole(cable, h = 100, teardrop = false) { //! A mouse hole to allow a panel to go over a wire bundle.
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r = wire_hole_radius(cable);
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if(teardrop)
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vertical_tearslot(r = r, l = 2 * r, h = h, plus = true);
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else
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rotate(90)
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slot(r, 2 * r, h = h);
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}
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module cable_tie_holes(cable_r, h = 100) { //! Holes to thread a ziptie through a panel to make a cable tie.
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r = cnc_bit_r;
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l = 3;
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extrude_if(h)
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for(side = [-1, 1])
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translate([0, side * (cable_r + ziptie_thickness(small_ziptie) / 2)])
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hull()
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for(end = [-1, 1])
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translate([end * (l / 2 - r), 0])
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drill(r, 0);
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}
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module cable_tie(cable_r, thickness) { //! A ziptie threaded around cable radius `cable_r` and through a panel with specified `thickness`.
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translate_z(cable_r)
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rotate([-90, 0, 90])
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ziptie(small_ziptie, cable_r, thickness);
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}
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