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Merge branch 'extrusion_corner_brackets' of https://github.com/martinbudden/NopSCADlib into martinbudden-extrusion_corner_brackets
This commit is contained in:
Chris Palmer
commit
00690b61d2
61
tests/extrusion_brackets.scad
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61
tests/extrusion_brackets.scad
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//
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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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include <../core.scad>
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include <../vitamins/extrusion_brackets.scad>
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include <../vitamins/extrusions.scad>
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include <../vitamins/washers.scad>
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include <../vitamins/nuts.scad>
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module extrusion_brackets() {
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extrusion_inner_corner_bracket(E20_inner_corner_bracket);
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translate([30, 0])
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extrusion_inner_corner_bracket(E20_inner_corner_bracket, grub_screws = false);
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translate([60, 0])
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extrusion_corner_bracket_assembly(E20_corner_bracket);
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eWidth = extrusion_width(E2020);
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translate([0, 60]) {
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extrusion_inner_corner_bracket(E20_inner_corner_bracket);
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translate([-eWidth / 2, 0, 0])
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rotate([-90, 0, 0])
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extrusion(E2020, 20);
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translate([-eWidth, -eWidth / 2, 0])
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rotate([0, 90, 0])
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extrusion(E2020, 40);
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}
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translate([60, 60]) {
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extrusion_corner_bracket_assembly(E20_corner_bracket);
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translate([-eWidth / 2, 0, 0])
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rotate([-90, 0, 0])
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extrusion(E2020, 30);
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translate([-eWidth, -eWidth / 2, 0])
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rotate([0, 90, 0])
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extrusion(E2020, 50);
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}
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}
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if($preview)
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let($show_threads = true)
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extrusion_brackets();
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119
vitamins/extrusion_bracket.scad
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119
vitamins/extrusion_bracket.scad
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include <NopSCADlib/core.scad>
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include <screws.scad>
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include <nuts.scad>
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function extrusion_inner_corner_racket_size(type) = type[1]; //! Size of bracket
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module extrusion_inner_corner_bracket(type, grub_screws = true) { //! Inner corner bracket for extrusion
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vitamin(str("extrusion_inner_corner_bracket(", type[0], ", ", grub_screws, "): Extrusion inner corner bracket ", type[1].z));
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size = extrusion_inner_corner_racket_size(type);
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armLength = size.x;
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bottomTabOffset = 4;
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topTabOffset = 10;
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sizeBottom = [armLength - bottomTabOffset, 6, size.z];
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sizeTop = [armLength - topTabOffset, 6, size.z];
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tabSizeY1 = 10;
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tabSizeY2 = 6;
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tabSizeZ = 3.25;
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holeRadius = M4_tap_radius;
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translate([-size.z - 0.75, -size.z - 0.75, 0])
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rotate([-90, 0, 0]) {
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color("silver") {
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translate([(armLength + bottomTabOffset) / 2, 0, tabSizeZ])
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rotate([0, 180, 0])
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extrusionSlidingNut(sizeBottom, tabSizeY1, tabSizeY2, tabSizeZ, holeRadius, (bottomTabOffset - armLength) / 2 + 5);
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translate([tabSizeZ, 0, (armLength + topTabOffset) / 2])
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rotate([0, -90, 0])
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extrusionSlidingNut(sizeTop, tabSizeY1, tabSizeY2, tabSizeZ, holeRadius,-(topTabOffset - armLength) / 2 - 5);
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translate([0, -size.z / 2, 0]) {
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cube([bottomTabOffset, size.z, size.z]);
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cube([size.z, size.z, topTabOffset]);
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}
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}
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if(grub_screws)
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not_on_bom() no_explode() {
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grubScrewLength = 6;
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for(angle = [[0, 0, 0], [0, -90, 180]])
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rotate(angle)
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translate([armLength - 5, 0, size.z])
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screw(M3_grub_screw, grubScrewLength);
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}
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}
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}
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function extrusion_corner_bracket_size(type) = type[1]; //! Size of bracket
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function extrusion_corner_bracket_base_thickness(type) = type[2]; //! Thickness of base of bracket
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function extrusion_corner_bracket_side_thickness(type) = type[3]; //! Thickness of side of bracket
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function extrusion_corner_bracket_hole_offset(type) = type[4]; //! Hole offset from corner
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module extrusion_corner_bracket(type) { //! Corner bracket for extrusion
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echo(type=type);
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vitamin(str("extrusion_corner_bracket(", type[0], "): Extrusion corner bracket ", type[1].z));
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eSize = extrusion_corner_bracket_size(type).z;
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cbSize = extrusion_corner_bracket_size(type).x;
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baseThickness = extrusion_corner_bracket_base_thickness(type);
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module base() {
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linear_extrude(baseThickness)
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difference() {
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translate([0, -eSize / 2, 0])
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square([cbSize, eSize]);
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hull() {
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translate([extrusion_corner_bracket_hole_offset(type) + 1.5, 0, 0])
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circle(r = M5_clearance_radius);
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translate([extrusion_corner_bracket_hole_offset(type) - 1.5, 0, 0])
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circle(r = M5_clearance_radius);
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}
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}
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}
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color("silver") {
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rotate([90, 0, 90])
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base();
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translate([0, baseThickness, 0])
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rotate([90, 0, 0])
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base();
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sideThickness = extrusion_corner_bracket_side_thickness(type);
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for(z = [-eSize / 2, eSize / 2 - sideThickness]) {
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translate_z(z) {
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right_triangle(cbSize, cbSize, sideThickness, center = false);
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cube([5, cbSize, sideThickness]);
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cube([cbSize, 5, sideThickness]);
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}
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}
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}
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}
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module extrusion_corner_bracket_hole_positions(type) { //! Place children at hole positions
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for(angle = [ [0, 90, 0], [-90, -90, 0] ])
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rotate(angle)
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translate([0, extrusion_corner_bracket_hole_offset(type), extrusion_corner_bracket_base_thickness(type)])
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children();
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}
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module extrusion_corner_bracket_assembly(type, part_thickness = 2, screw_type = M4_cap_screw, nut_type = M4_sliding_t_nut, max_screw_depth = 6) { //! Assembly with fasteners in place
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extrusion_corner_bracket(type);
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screw_washer_thickness = washer_thickness(screw_washer(screw_type));
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nut_washer_type = nut_washer(nut_type);
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nut_washer_thickness = nut_washer_type ? washer_thickness(nut_washer_type) : 0;
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nut_offset = extrusion_corner_bracket_base_thickness(type) + part_thickness;
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screw_length = max_screw_depth ? screw_shorter_than(extrusion_corner_bracket_base_thickness(type) + screw_washer_thickness + max_screw_depth)
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: screw_longer_than(nut_offset + screw_washer_thickness + nut_washer_thickness + nut_thickness(nut_type));
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extrusion_corner_bracket_hole_positions(type) {
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screw_and_washer(screw_type, screw_length);
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translate_z(-nut_offset)
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vflip()
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if(nut_washer_type)
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nut_and_washer(nut_type);
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else
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rotate(90)
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sliding_t_nut(nut_type);
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}
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}
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29
vitamins/extrusion_brackets.scad
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29
vitamins/extrusion_brackets.scad
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@ -0,0 +1,29 @@
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//
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// NopSCADlib Copyright Chris Palmer 2020
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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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// Extrusion brackets
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//
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E20_inner_corner_bracket = [ "E20_inner_corner_bracket", [25, 25, 4.5] ];
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E20_corner_bracket = [ "E20_corner_bracket", [28, 28, 20], 2, 3, 19.5];
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use <extrusion_bracket.scad>
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