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incremental work

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This commit is contained in:
zhao
2023-01-05 22:46:04 -05:00
parent 93a0ec3a2c
commit dd9f8cf3ea
4 changed files with 54 additions and 66 deletions
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91
rack2/mainRail.scad
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@ -8,32 +8,29 @@ railFootThickness = 3;
railTotalHeight = screwDiff * (numRailScrews + 1) + 2 * railFootThickness;
railFrontThickness = 6; // Make sure that the nuts for the chosen screw type can slot within the front face
railSideMountThickness = 2.5;
// Distance between the middle of a screw mount and the rail's vertical edges
railScrewHoleToInnerEdge = 5;
railScrewHoleToOuterEdge = 5;
railScrewHoleToOuterEdge = 7;
// Distance between the midpoint of the rail screw holes.
rackMountScrewWidth = maxUnitWidth + 2 * railScrewHoleToInnerEdge;
railFrontThickness = 6; // Make sure that the nuts for the chosen screw type can slot within the front face
railSideMountThickness = 2.5;
railOtherThickness = 2.5;
// Extra spacing for screws.
frontScrewSpacing = 8;
frontScrewSpacing = 15;
sideSupportExtraSpace = 2;
sideSupportScrewHoleToFrontEdge = 5;
sideSupportScrewHoleToBackEdge = 4.5;
sideSupportDepth = sideSupportScrewHoleToBackEdge + sideSupportScrewHoleToFrontEdge;
sideSupportScrewHoleToBackEdge = 4;
sideSupportDepth = sideSupportScrewHoleToBackEdge + frontScrewSpacing;
frontFaceWidth = railScrewHoleToInnerEdge + railScrewHoleToOuterEdge;
railTotalWidth = frontFaceWidth;
railTotalDepth = railFrontThickness+railOtherThickness+frontScrewSpacing+sideSupportDepth;
railTotalDepth = railFrontThickness+sideSupportDepth;
*mainRail();
echo("Total Rail Height: ", railTotalHeight);
module mainRail() {
@ -41,19 +38,16 @@ module mainRail() {
union() {
_frontRailSegment();
translate(v = [0, railFrontThickness, 0])
_connectingLBracketRailSegment();
translate(v = [frontFaceWidth-sideSupportExtraSpace, railFrontThickness+railOtherThickness+frontScrewSpacing, 0])
translate(v = [railSideMountThickness, railFrontThickness, 0])
rotate(a = [0, 0, 90])
_sideSupportSegment();
translate(v = [0, railFrontThickness, 0]) {
translate(v = [0, railFrontThickness + railOtherThickness + frontScrewSpacing, 0]) {
translate(v=[railSideMountThickness,0,0])
_railFeet();
translate(v = [0, 0, railTotalHeight - railFootThickness])
translate(v = [railSideMountThickness, 0, railTotalHeight - railFootThickness])
_railFeet();
}
}
@ -70,54 +64,40 @@ module mainRail() {
}
}
module _connectingLBracketRailSegment() {
difference() {
cube(size = [railOtherThickness, frontScrewSpacing + railOtherThickness, railTotalHeight]);
union() {
translate(v = [0, 4, railFootThickness + screwDiff / 2])
rotate(a = [0, 90, 0])
cylinder(r = screwRadiusSlacked(rackFrameScrewType), h = 10, $fn = 32, center = true);
translate(v = [0, 4, railTotalHeight - (railFootThickness + screwDiff / 2)])
rotate(a = [0, 90, 0])
cylinder(r = screwRadiusSlacked(rackFrameScrewType), h = inf10, $fn = 32, center = true);
}
}
translate(v = [0, frontScrewSpacing + railOtherThickness, 0])
rotate(a = [0, 0, 270])
cube(size = [railOtherThickness, frontFaceWidth - sideSupportExtraSpace, railTotalHeight]);
}
module _sideSupportSegment() {
difference() {
cube(size = [sideSupportDepth, railSideMountThickness, railTotalHeight]);
for (i = [1:numRailScrews]) {
translate(v = [sideSupportScrewHoleToFrontEdge, railFrontThickness / 2, i * screwDiff + railFootThickness])
rotate(a = [90, 0, 0])
cylinder(r = screwRadiusSlacked(mainRailSideMountScrewType), h = inf10, $fn = 32);
union() {
for (i = [1:numRailScrews]) {
translate(v = [frontScrewSpacing, railFrontThickness/2, i*screwDiff+railFootThickness])
rotate(a = [90, 0, 0])
cylinder(r = screwRadiusSlacked(mainRailSideMountScrewType), h = inf10, $fn = 32);
}
translate(v = [4, 0, railFootThickness + 5])
rotate(a=[90,0,0])
cylinder(r = screwRadiusSlacked(rackFrameScrewType), h = inf10, $fn = 32, center = true);
translate(v = [4, 0, railTotalHeight- (railFootThickness + 5)])
rotate(a=[90,0,0])
cylinder(r = screwRadiusSlacked(rackFrameScrewType), h = inf10, $fn = 32, center = true);
}
}
}
module _railFeet() {
difference() {
cube(size = [frontFaceWidth - sideSupportExtraSpace, sideSupportDepth, railFootThickness]);
cube(size = [frontFaceWidth - railSideMountThickness, sideSupportDepth, railFootThickness]);
hull() {
translate(v = [1.5, 5, 0])
cylinder(r = screwRadiusSlacked(rackFrameScrewType), h = inf10, $fn = 32);
translate(v = [6, 4, 0])
cylinder(r = screwRadiusSlacked(rackFrameScrewType), h = inf10, $fn = 32);
translate(v = [6, 12, 0])
cylinder(r = screwRadiusSlacked(rackFrameScrewType), h = inf10, $fn = 32);
translate(v = [0, 5, 0])
cube(size = [eps, screwRadiusSlacked(rackFrameScrewType) * 2, 10], center = true);
}
}
}
}
module railFeetSlot_N() {
@ -125,7 +105,10 @@ module railFeetSlot_N() {
union() {
cube(size = [railTotalWidth, railTotalDepth, railFootThickness]);
translate(v=[1.5, railTotalDepth - 4, -m3HeatSetInsertSlotHeightSlacked])
translate(v = [railSideMountThickness + 6, railFrontThickness + 4, -m3HeatSetInsertSlotHeightSlacked])
heatSetInsertSlot_N(rackFrameScrewType);
translate(v = [railSideMountThickness + 6, railFrontThickness + 12, -m3HeatSetInsertSlotHeightSlacked])
heatSetInsertSlot_N(rackFrameScrewType);
}
}