114 lines
3.3 KiB
OpenSCAD
114 lines
3.3 KiB
OpenSCAD
$inner_w = 88;
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$inner_r = 10; // this is the approximate inner radius of the welds on the rack
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$bar_d = 10; // diameter of the bars (and spacing between the sectors
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$b_sector = 50;
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$m_sector = 103;
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$f_sector = 97;
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$boot_h = 15;
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$seat_h = 5;
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$fn=20;
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$seat_w = $inner_w + $bar_d + $bar_d;
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$full_w = $b_sector + $m_sector + $f_sector + (2*$bar_d);
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$tie_spacing = 46; // 50 mm between each tie cross
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$tie_lr_spacing = 15; // 15 mm spacing between each side of the cross
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$tie_hole_r = 3; // size of the hole for zipties
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$tie_margin = 30; // inner margin of tie rows
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$tie_margin_f = 20; // front margin of tie rows
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$tie_num = 7; // number of ties in each row
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module rounded_cube(x, y, z)
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{
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//cube([x, y, z]);
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hull() {
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translate([$inner_r, $inner_r, 0])
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cylinder(r=$inner_r, h=z);
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translate([x-$inner_r, $inner_r, 0])
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cylinder(r=$inner_r, h=z);
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translate([x-$inner_r, y-$inner_r, 0])
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cylinder(r=$inner_r, h=z);
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translate([$inner_r, y-$inner_r, 0])
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cylinder(r=$inner_r, h=z);
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}
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}
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module base() {
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difference() {
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// boots + base
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translate([$bar_d,0,0]) {
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union() {
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rounded_cube($inner_w, $b_sector, $boot_h);
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// translate([0, $b_sector + $bar_d, 0])
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// rounded_cube($inner_w, $m_sector, $boot_h);
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// translate([0, $b_sector + $bar_d + $m_sector + $bar_d, 0])
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// rounded_cube($inner_w, $f_sector, $boot_h);
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// seat
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// translate([-$bar_d,0,$boot_h-0.1])
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// rounded_cube($seat_w,
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// $b_sector + $m_sector + $f_sector + (2*$bar_d),
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// $seat_h);
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translate([-$bar_d,-$bar_d,$boot_h-0.1])
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rounded_cube($seat_w,
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$b_sector + (2*$bar_d),
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$seat_h);
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}
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}
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// ziptie holes
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translate([0, $tie_margin_f, 0]) {
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for ( i = [1 : $tie_spacing : ($tie_spacing * $tie_num)] ) {
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translate([0, i - (0.5*$tie_lr_spacing), 0]) {
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translate([$tie_margin, 0, -.1]) {
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cylinder(r=$tie_hole_r, h=($boot_h + $seat_h + 2));
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translate([0, $tie_lr_spacing, 0]) {
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cylinder(r=$tie_hole_r, h=($boot_h + $seat_h + 2));
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}
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}
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translate([$seat_w - $tie_margin, 0, -.1]) {
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cylinder(r=$tie_hole_r, h=($boot_h + $seat_h + 2));
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translate([0, $tie_lr_spacing, 0]) {
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cylinder(r=$tie_hole_r, h=($boot_h + $seat_h + 2));
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}
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}
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}
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}
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// perpendicular zip tie holes
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for ( i = [0 : ($tie_spacing) * 2 : $tie_spacing * ($tie_num - 1) ] ) {
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translate([(0.5 * $seat_w) - ($tie_lr_spacing * 0.5),
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i + (($tie_spacing) / 2),
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-.1]) {
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cylinder(r=$tie_hole_r, h=($boot_h + $seat_h + 2));
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translate([$tie_lr_spacing, 0, 0]) {
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cylinder(r=$tie_hole_r, h=($boot_h + $seat_h + 2));
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}
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}
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}
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}
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}
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}
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module sliced(half=0) {
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if (half==0) {
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difference() {
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base();
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translate([-0.5,-0.1,-0.1])
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cube([$inner_w + (2*$bar_d) + 1,
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$full_w / 2 + 0.1,
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$seat_h+$boot_h + 1]);
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}
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} else {
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difference() {
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base();
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translate([-0.5,$full_w/2 + 0.1,-0.1])
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cube([$inner_w + (2*$bar_d) + 1,
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$full_w / 2,
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$seat_h+$boot_h + 1]);
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}
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}
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}
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