115 lines
3.5 KiB
OpenSCAD
115 lines
3.5 KiB
OpenSCAD
include <./config.scad>
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include <./screws.scad>
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include <../math.scad>
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/* Small horizontal planes at the top and bottom of the main rails. Used so we can fasten the rail to the frame
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Note that this value is also used for a depression at the bottom/top of the frame for aligning the rail */
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railFootThickness = 3;
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railTotalHeight = screwDiff * (numRailScrews + 1) + 2 * railFootThickness;
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railFrontThickness = 6; // Make sure that the nuts for the chosen screw type can slot within the front face
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railSideMountThickness = 2.5;
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// Distance between the middle of a screw mount and the rail's vertical edges
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railScrewHoleToInnerEdge = 5;
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railScrewHoleToOuterEdge = 7;
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// Distance between the midpoint of the rail screw holes.
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rackMountScrewWidth = maxUnitWidth + 2 * railScrewHoleToInnerEdge;
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// Extra spacing for screws.
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frontScrewSpacing = 15;
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sideSupportScrewHoleToBackEdge = 4;
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sideSupportDepth = sideSupportScrewHoleToBackEdge + frontScrewSpacing;
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frontFaceWidth = railScrewHoleToInnerEdge + railScrewHoleToOuterEdge;
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railTotalWidth = frontFaceWidth;
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railTotalDepth = railFrontThickness+sideSupportDepth;
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*mainRail();
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echo("Total Rail Height: ", railTotalHeight);
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module mainRail() {
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union() {
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_frontRailSegment();
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translate(v = [railSideMountThickness, railFrontThickness, 0])
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rotate(a = [0, 0, 90])
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_sideSupportSegment();
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translate(v = [0, railFrontThickness, 0]) {
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translate(v=[railSideMountThickness,0,0])
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_railFeet();
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translate(v = [railSideMountThickness, 0, railTotalHeight - railFootThickness])
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_railFeet();
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}
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}
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module _frontRailSegment() {
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difference() {
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cube(size = [frontFaceWidth, railFrontThickness, railTotalHeight]);
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for (i = [1:numRailScrews]) {
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translate(v = [railScrewHoleToOuterEdge, railFrontThickness / 2, i * screwDiff + railFootThickness])
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rotate(a = [90, 0, 0])
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hexNutPocket_N(mainRailScrewType);
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}
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}
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}
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module _sideSupportSegment() {
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difference() {
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cube(size = [sideSupportDepth, railSideMountThickness, railTotalHeight]);
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union() {
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for (i = [1:numRailScrews]) {
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translate(v = [frontScrewSpacing, railFrontThickness/2, i*screwDiff+railFootThickness])
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rotate(a = [90, 0, 0])
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cylinder(r = screwRadiusSlacked(mainRailSideMountScrewType), h = inf10, $fn = 32);
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}
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translate(v = [4, 0, railFootThickness + 5])
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rotate(a=[90,0,0])
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cylinder(r = screwRadiusSlacked(rackFrameScrewType), h = inf10, $fn = 32, center = true);
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translate(v = [4, 0, railTotalHeight- (railFootThickness + 5)])
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rotate(a=[90,0,0])
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cylinder(r = screwRadiusSlacked(rackFrameScrewType), h = inf10, $fn = 32, center = true);
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}
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}
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}
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module _railFeet() {
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difference() {
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cube(size = [frontFaceWidth - railSideMountThickness, sideSupportDepth, railFootThickness]);
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translate(v = [6, 4, 0])
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cylinder(r = screwRadiusSlacked(rackFrameScrewType), h = inf10, $fn = 32);
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translate(v = [6, 12, 0])
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cylinder(r = screwRadiusSlacked(rackFrameScrewType), h = inf10, $fn = 32);
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}
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}
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}
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module railFeetSlot_N() {
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union() {
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cube(size = [railTotalWidth, railTotalDepth, railFootThickness]);
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translate(v = [railSideMountThickness + 6, railFrontThickness + 4, -m3HeatSetInsertSlotHeightSlacked])
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heatSetInsertSlot_N(rackFrameScrewType);
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translate(v = [railSideMountThickness + 6, railFrontThickness + 12, -m3HeatSetInsertSlotHeightSlacked])
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heatSetInsertSlot_N(rackFrameScrewType);
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}
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}
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