75 lines
1.9 KiB
OpenSCAD
75 lines
1.9 KiB
OpenSCAD
$fn=75;
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// distance between two rods
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holeDist=65;
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// diameter of rod sticks
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rodDiameter=8;
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// overall height
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heightMain=90;
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width=60;
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depth=10;
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bearingLength=24;
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bearingDiam=15;
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twoRodSize=2.2;
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middleCylinderRad=2.5;
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middleCylinderOuterRad=4;
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rollWithRodDist=13.6; // rolle mit rod drauf
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difference() {
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body();
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dist=(heightMain-holeDist)/2;
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translate([0,0,dist]) bearingHalfHole();
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translate([0,0,dist+holeDist]) bearingHalfHole();
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cubecenter=heightMain/2-rollWithRodDist/2;
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translate([0, 0, heightMain/2]) cube([width, 5, rollWithRodDist]);
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translate([0, -5, cubecenter]) beltHolder();
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translate([width, -5, cubecenter]) rotate([0, 180, 0]) beltHolder();
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}
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module body() {
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edgeRound=1.5;
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translate([edgeRound, 0, edgeRound]) minkowski() {
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cube([width-edgeRound*2, depth/2, heightMain-edgeRound*2]);
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rotate([-90, 0, 0]) cylinder(r=edgeRound,h=depth/2);
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}
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cubez=heightMain/2-rollWithRodDist;
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translate([0, -5, cubez]) cube([width, 5, rollWithRodDist]);
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// the bottom triangle
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translate([0, 0, cubez]) rotate([-90,0,-90]) linear_extrude(width) #polygon([[0,0],[5,0],[0,5]]);
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}
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module bearingHalfHole() {
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sideDist=3;
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rotate([0, 90, 0]) cylinder(h = width, d = 8+1); // we are defining +1mm to fit the rod in the hole...
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translate([sideDist,0,0]) rotate([0, 90, 0]) cylinder(h = bearingLength, d = bearingDiam);
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translate([width-bearingLength-sideDist,0,0]) rotate([0, 90, 0]) cylinder(h = bearingLength, d = bearingDiam);
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}
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module beltHolder() {
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translate([0, 0, -twoRodSize/2]) {
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cube([17, 10, twoRodSize]);
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translate([20, 0, twoRodSize/2]) rotate([-90, 0, 0]) difference() {
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hull() {
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cylinder(r=middleCylinderOuterRad, h=10);
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#translate([-5, 0, 0]) #cylinder(r=1, h=10);
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}
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cylinder(r=middleCylinderRad, h=10);
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}
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}
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}
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