118 lines
3.6 KiB
OpenSCAD
118 lines
3.6 KiB
OpenSCAD
include <../helper/common.scad>
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include <../config/common.scad>
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include <../rack/sharedVariables.scad>
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include <./common.scad>
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sideSupportRailBase(u=2, double=true, top=true, baseThickness=1.5, sideThickness=4, backThickness=2, supportedZ=27.5, supportedY=101.5, supportedX=159);
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// distance between front and back main rail screw mounts
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sideRailScrewMountDist = yBarDepth - 2*(frontScrewSpacing + railFrontThickness + railSlotToXZ);
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module sideSupportRailBase(u=2, double=true, top=true, baseThickness=2, sideThickness=2, backThickness=2, supportedZ=26.5, supportedY=101.5, supportedX=159) {
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mountBlockHeight = 10;
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mountBlockDepth = 10;
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screwMountGlobalDz = screwDiff / 2.0; // vertical distance between local origin and main rail screw mount
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railLength = max(sideRailScrewMountDist + frontScrewSpacing + mountBlockDepth, supportedY+backThickness);
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railBaseThickness = baseThickness;
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railSideThickness = sideThickness;
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railBaseWidth = 15;
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railSideHeight = supportedZ + railBaseThickness*2;
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frontMountPad = frontScrewSpacing;
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applyMainRailMounts()
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sideSupportRailBase();
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module applyMainRailMounts() {
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mountBlockExtension = (railSupportsDx - supportedX)/2 - railSideThickness;
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assert(mountBlockExtension >= 10);
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apply_p() {
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union() {
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translate(v = [0, frontMountPad, 0])
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mountBlockColumn(mountBlockExtension=mountBlockExtension, u=u);
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translate(v=[0,frontMountPad+sideRailScrewMountDist, 0])
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mountBlockColumn(mountBlockExtension=mountBlockExtension, u=u);
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}
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children(0);
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}
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}
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module mountBlockColumn(mountBlockExtension, u) {
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difference() {
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translate(v = [-mountBlockExtension, 0, 0])
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cube(size = [mountBlockExtension, mountBlockDepth, railSideHeight]);
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union() {
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nutPocket();
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if (double) {
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translate(v=[0,0,uDiff * u]) // screwMountToGlobalZ
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nutPocket();
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}
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}
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}
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module nutPocket() {
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translate(v=[-mountBlockExtension/2,mountBlockDepth/2,mountBlockHeight/2]) // screwMountToGlobalZ
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rotate(a=[90,0,0])
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rotate(a=[0,90,0])
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hexNutPocket_N(rackFrameScrewType, openSide=false);
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}
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}
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module sideSupportRailBase() {
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backThickness = 3;
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difference () {
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union() {
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cube(size = [railBaseWidth, railLength, railBaseThickness]);
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cube(size = [railSideThickness, railLength, railSideHeight]);
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// back support
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translate(v = [0, max(railLength-backThickness, supportedY), 0])
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cube(size = [railBaseWidth, backThickness, railSideHeight]);
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// back support for box
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translate(v = [0, supportedY, 0])
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cube(size = [railBaseWidth, backThickness, railSideHeight]);
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// top support
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if (top) {
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translate(v = [0, 0, railSideHeight-baseThickness])
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cube(size = [railBaseWidth, railLength, railBaseThickness]);
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}
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}
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union() {
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distanceFromSeparator = 3;
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r = 5;
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boxDy = frontMountPad+r+mountBlockDepth+distanceFromSeparator;
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boxDz = baseThickness+distanceFromSeparator+r;
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translate(v=[0,boxDy,boxDz])
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minkowski() {
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cube(size = [sideThickness, supportedY-(boxDy+distanceFromSeparator+r), railSideHeight-2*boxDz]);
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sphere(r=r);
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}
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translate(v=[0,supportedY+distanceFromSeparator+r+backThickness,boxDz])
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minkowski() {
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cube(size = [sideThickness, 25, railSideHeight-2*boxDz]); // TODO calculate 22.5
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sphere(r=r);
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}
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cylindricalFiletNegative(p0=[railBaseWidth,0,0],p1=[railBaseWidth,0,inf], n=[1,-1,0],r=4);
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}
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}
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}
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}
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