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improve rack ears

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This commit is contained in:
zhao
2023-08-13 00:55:47 -04:00
parent eef5329448
commit 07dee71795
8 changed files with 49 additions and 34 deletions
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49
rack-mount/rackEars.scad
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@ -1,43 +1,52 @@
include <./common.scad>
// Rack ear modules.
// To be used either by itself if the mount-item supports it, or within another module
// To be used either by itself if the item supports it, or within another module
module rackEarStandAlone(frontThickness, sideThickness, frontWidth, sideDepth, sideHoles) {
// TODO
}
rackEarModule(frontThickness=3,sideThickness=3,frontWidth=30, sideDepth=50, u=4, support=true);
module rackEarModule(frontThickness, sideThickness, frontWidth, sideDepth, u, triangular=true) {
module rackEarModule(frontThickness, sideThickness, frontWidth, sideDepth, u, backPlaneHeight=3, support=true) {
earHeight = u*uDiff + 2*rackMountScrewZDist;
difference() {
translate(v = [-rackMountScrewXDist, 0, -rackMountScrewZDist]) {
// front
cube(size = [frontWidth, frontThickness, earHeight]);
if (triangular) {
hull() {
translate(v = [frontWidth-sideThickness, 0, 0])
// side
hull() {
translate(v = [frontWidth-sideThickness, 0, 0])
cube(size = [sideThickness, frontThickness, earHeight]);
translate(v = [frontWidth-sideThickness, sideDepth, 0])
cube(size = [sideThickness, frontThickness, 1]);
backSegmentPlane();
}
if (support) {
hull() {
extraSpacing = 1;
translate(v= [rackMountScrewXDist+railScrewHoleToOuterEdge+extraSpacing,frontThickness,0])
cube(size = [sideThickness, eps, earHeight]);
backSegmentPlane();
}
} else {
translate(v = [frontWidth-sideThickness, 0, 0])
cube(size = [sideThickness, sideDepth, earHeight]);
}
}
union() {
rotate(a=[90,0,0])
rackMountHoles();
}
module backSegmentPlane() {
translate(v = [frontWidth-sideThickness, sideDepth, 0])
cube(size = [sideThickness, eps, backPlaneHeight]);
}
module rackMountHoles() {
rotate(a=[90,0,0])
cylinder(r=screwRadiusSlacked(mainRailScrewType), h=frontThickness*2, center=true);
translate(v=[0,0,u*uDiff])
translate(v=[0,0,u*uDiff])
rotate(a=[90,0,0])
cylinder(r=screwRadiusSlacked(mainRailScrewType), h=frontThickness*2, center=true);
}
cylinder(r=screwRadiusSlacked(mainRailScrewType), h=frontThickness*2, center=true);
}
}
rackEarModule(frontThickness=3,sideThickness=3,frontWidth=30, sideDepth=50, u=4);