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update side support

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This commit is contained in:
zhao
2023-08-08 12:48:49 -04:00
parent e740ab8680
commit 8fbd3aa573
4 changed files with 89 additions and 72 deletions
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133
rack-mount/side-rail/dualMount.scad
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@ -1,68 +1,63 @@
include <../../helper/common.scad>
include <../../helper/math.scad>
include <../../helper/screws.scad>
include <../../rack/config.scad>
include <../../config/common.scad>
include <../../rack/sharedVariables.scad>
include <../common.scad>
*sideSupportRailBase("lBracket");
// TODO: make this parametric
sideSupportRailBase(u=2, double=true, top=true, baseThickness=1.5, sideThickness=4, backThickness=2, supportedZ=27.5, supportedY=101.5, supportedX=159);
// distance between front and back main rail screw mounts
sideRailScrewMountDist = yBarDepth - 2*(frontScrewSpacing + railFrontThickness + railSlotToXZ); // TODO use transformation matrices
sideRailScrewMountDist = yBarDepth - 2*(frontScrewSpacing + railFrontThickness + railSlotToXZ);
module sideSupportRailBase(type) {
module sideSupportRailBase(u=2, double=true, top=true, baseThickness=2, sideThickness=2, backThickness=2, supportedZ=26.5, supportedY=101.5, supportedX=159) {
// vertical distance between local origin and main rail screw mount
screwMountGlobalDz = screwDiff / 2.0;
mountBlockHeight = 10;
mountBlockDepth = 10;
screwMountGlobalDz = screwDiff / 2.0; // vertical distance between local origin and main rail screw mount
railLength = max(sideRailScrewMountDist + frontScrewSpacing + mountBlockDepth, supportedY+backThickness);
railBaseThickness = baseThickness;
railSideThickness = sideThickness;
railBaseWidth = 15;
railSideHeight = supportedZ + railBaseThickness*2;
frontMountPad = frontScrewSpacing;
railLength = sideRailScrewMountDist + 30; // TODO calculate this
railBaseThickness = 2;
railBaseWidth = 18;
railSideThickness = 2;
railSideHeight = 15;
sideDy = -2;
frontMountPad = 10; // depends on y of box to be mounted TODO calculate this
sideMountPad = 10; // depends on x of box TODO calculate this
translate(v=[sideMountPad,-(frontMountPad + 5),-5])
applyMainRailMounts()
sideSupportRailBaseHolder();
module sideSupportRailBaseHolder() {
if (type == "lBracket") {
sideSupportRailBaseLBracket();
} else {
error("Unsupported side support type");
}
}
sideSupportRailBase();
module applyMainRailMounts() {
mountBlockExtension = (railSupportsDx - supportedX)/2 - railSideThickness;
assert(mountBlockExtension >= 10);
apply_p() {
translate(v=[0,frontMountPad,0])
union() {
dualMount();
translate(v=[0,sideRailScrewMountDist,0])
dualMount();
translate(v = [0, frontMountPad, 0])
mountBlockColumn(mountBlockExtension=mountBlockExtension, u=u);
translate(v=[0,frontMountPad+sideRailScrewMountDist, 0])
mountBlockColumn(mountBlockExtension=mountBlockExtension, u=u);
}
children(0);
}
}
module dualMount() {
blockHeight = railSideHeight - sideDy;
module mountBlockColumn(mountBlockExtension, u) {
difference() {
// mount block
translate(v = [-sideMountPad, 0, sideDy])
cube(size = [sideMountPad, 10, blockHeight+sideDy]);
translate(v = [-mountBlockExtension, 0, 0])
cube(size = [mountBlockExtension, mountBlockDepth, railSideHeight]);
// screw mount
translate(v=[-5,5,5]) // screwMountToGlobalZ
union() {
nutPocket();
if (double) {
translate(v=[0,0,uDiff * u]) // screwMountToGlobalZ
nutPocket();
}
}
}
module nutPocket() {
translate(v=[-mountBlockExtension/2,mountBlockDepth/2,mountBlockHeight/2]) // screwMountToGlobalZ
rotate(a=[90,0,0])
rotate(a=[0,90,0])
hexNutPocket_N(rackFrameScrewType, openSide=false);
@ -70,24 +65,52 @@ module sideSupportRailBase(type) {
}
module sideSupportRailBaseLBracket(backSupport=true, backThickness=3) {
module sideSupportRailBase() {
backThickness = 3;
translate(v=[0, 0, sideDy])
union() {
cube(size = [railBaseWidth, railLength, railBaseThickness]);
cube(size = [railSideThickness, railLength, railSideHeight]);
difference () {
union() {
cube(size = [railBaseWidth, railLength, railBaseThickness]);
if (backSupport) {
translate(v=[0, railLength-backThickness, 0])
cube(size=[railBaseWidth, backThickness, railSideHeight]);
cube(size = [railSideThickness, railLength, railSideHeight]);
// back support
translate(v = [0, max(railLength-backThickness, supportedY), 0])
cube(size = [railBaseWidth, backThickness, railSideHeight]);
// back support for box
translate(v = [0, supportedY, 0])
cube(size = [railBaseWidth, backThickness, railSideHeight]);
// top support
if (top) {
translate(v = [0, 0, railSideHeight-baseThickness])
cube(size = [railBaseWidth, railLength, railBaseThickness]);
}
}
union() {
distanceFromSeparator = 3;
r = 5;
boxDy = frontMountPad+r+mountBlockDepth+distanceFromSeparator;
boxDz = baseThickness+distanceFromSeparator+r;
translate(v=[0,boxDy,boxDz])
minkowski() {
cube(size = [sideThickness, supportedY-(boxDy+distanceFromSeparator+r), railSideHeight-2*boxDz]);
sphere(r=r);
}
translate(v=[0,supportedY+distanceFromSeparator+r+backThickness,boxDz])
minkowski() {
cube(size = [sideThickness, 25, railSideHeight-2*boxDz]); // TODO calculate 22.5
sphere(r=r);
}
cylindricalFiletNegative(p0=[railBaseWidth,0,0],p1=[railBaseWidth,0,inf], n=[1,-1,0],r=4);
}
}
}
module sideSupportRailBaseDovetail() {}
module sideSupportRailBaseBoxed() {}
}