98 lines
2.3 KiB
OpenSCAD
98 lines
2.3 KiB
OpenSCAD
include <../../common.scad>
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include <../../math.scad>
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include <../screws.scad>
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$fn=64;
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_height = 8;
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_width = 210;
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_depth = 200;
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module _bodySilBase(width, depth, height, roundedPartHeight) {
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hull() {
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cube(size = [width, depth, height - roundedPartHeight]);
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minkowski() {
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translate(v = [roundedPartHeight, 0, height - roundedPartHeight])
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cube(size = [width-2*roundedPartHeight, depth, eps]);
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rotate(a = [90, 0, 0])
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cylinder(r = roundedPartHeight, h = eps);
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}
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}
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}
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module _bodySil(width, depth, height, roundedPartHeight, wallThickness, topThickness) {
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cornerSquareDim = 30;
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difference() {
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_bodySilBase(width, depth, height, roundedPartHeight);
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union() {
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translate(v = [wallThickness, cornerSquareDim, - topThickness])
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_bodySilBase(width - 2 * wallThickness, depth - 2 * cornerSquareDim, height, roundedPartHeight);
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translate(v=[cornerSquareDim, wallThickness, -topThickness])
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cube(size=[width-2*cornerSquareDim, depth-2*wallThickness, height]);
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}
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}
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}
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// Negative and centered on xy. Aligned with z=0 downwards
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module _lugAndMagnet() {
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slack = 0.3;
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vSlack = 0.1;
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// lug
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translate(v=[0,0,-2.5])
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cube(size=[10+slack, 10+slack, 5+vSlack], center=true);
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// hole for magnet, no tolerance on
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translate(v=[0,0,-(5+vSlack+1.7)])
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cylinder(d=6+slack, h=1.7+vSlack);
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}
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module baseBody() {
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difference() {
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_bodySil(_width, _depth, _height, 4, 5, 2);
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_mid = [_width / 2, _depth / 2, _height];
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union() {
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for (i = mirror4XY(midpoint = _mid, offsetX = (_width / 2) - 15, offsetY = (_depth / 2) - 10)) {
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translate(v = i)
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_lugAndMagnet();
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}
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screwHolePositions = concat(
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mirror4XY(midpoint = _mid, offsetX = (_width / 2) - 25, offsetY = (_depth / 2) - 20),
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mirror4XY(midpoint = _mid, offsetX = (_width / 2) - 15, offsetY = (_depth / 2) - 20),
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mirror4XY(midpoint = _mid, offsetX = (_width / 2) - 25, offsetY = (_depth / 2) - 10)
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);
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for (i = screwHolePositions) {
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translate(v = i) {
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cylinder(r = m3RadiusSlacked, h = inf, center = true);
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}
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}
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}
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}
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}
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difference() {
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baseBody();
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union() {
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minkowski() {
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translate(v = [(_width - 130) / 2, (_depth - 150) / 2, - inf / 2])
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cube(size = [130, 150, inf]);
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cylinder(r = 5);
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}
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}
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}
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