65 lines
1.6 KiB
OpenSCAD
65 lines
1.6 KiB
OpenSCAD
// E clip type hardware for mystery ranch metcalf ultralite frame
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legDiam=9.5;
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bodyDiam=11.5;
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ctcLength=20;
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legLength=21;
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cordDiam=3;
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cordHoleGap=0.75;
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flattenBottom=0.3;
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$fn = 40;
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difference(){
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// half of e outer legs and base mirrored across yz +++++++++++++++++++++++++++++++++++++++++++
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color("blue"){
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for (dir = [-1 : 1] ) mirror([dir, 0, 0]){
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union(){
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rotate([0,90,0]){
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cylinder(ctcLength / 2, d = bodyDiam, center=false);
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}
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// rounded corner
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translate([ctcLength / 2, 0, 0]){
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sphere(d = bodyDiam);
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}
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// e leg outer
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translate([ctcLength / 2, legLength / 2 + bodyDiam / 4, 0]){
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rotate([90, 0, 0]){
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cylinder( legLength + bodyDiam / 2, d = legDiam, center = true);
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}
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}
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// e leg inner
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translate([0, legLength * 3 / 4, 0]){
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rotate([90, 0, 0]){
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cylinder(0.75 * legLength, d = 0.75 * legDiam);
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}
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}
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// rounded end, e leg inner
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translate([0, legLength * 3 / 4, 0]){
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sphere(d = 0.75 * legDiam);
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}
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// rounded end, outer legs
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translate([ctcLength / 2, legLength + bodyDiam / 2, 0]){
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sphere(d = legDiam);
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}
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}
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}
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}
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// flatten bottom for better print and interface ---------------------------
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color("red"){
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translate([0, 0, -1 * (1 - flattenBottom) * legDiam]){
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cube( [2 * ctcLength, 4 * legLength, legDiam], center=true);
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}
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}
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//hole for cord
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color("green"){
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translate([0, legLength * 3 / 4 * 0.9, 0]){
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cylinder( bodyDiam * 1.1, d = cordDiam, center = true);
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}
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}
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}
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