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OpenSCAD source code: Retainer for bathroom door
// Bathroom Door Retainer
// Ed Nisley KE4ZNU - May 2017
Layout = "Show"; // Show Build
//-------
//- Extrusion parameters must match reality!
ThreadThick = 0.20;
ThreadWidth = 0.40;
HoleWindage = 0.2;
Protrusion = 0.1; // make holes end cleanly
function IntegerMultiple(Size,Unit) = Unit * ceil(Size / Unit);
//-------
// Dimensions
TowelBarSide = 20.5; // towel bar across flat side
TowelBarAngle = 45; // rotation of top flat from horizontal
DoorOffset = 16.0; // from towel bar to door
DoorThick = 36.5;
WallThick = 4.0; // minimum wall thickness
RetainerDepth = 10.0; // thickness of retaining notch
NumSides = 6*4;
CornerRad = WallThick;
BarClipOD = TowelBarSide*sqrt(2) + 2*WallThick;
BarClipRad = BarClipOD/2;
OAH = RetainerDepth + WallThick;
module LatchPlan() {
union() {
linear_extrude(height=OAH,convexity=4)
difference() {
union() {
circle(d=BarClipOD,$fn=NumSides);
hull()
for (i=[0,1], j=[0,1])
translate([i*(BarClipRad + DoorOffset + DoorThick + WallThick - CornerRad),j*(BarClipRad - CornerRad)])
circle(r=CornerRad,$fn=4*4);
}
rotate(TowelBarAngle) // towel bar shape
square(size=TowelBarSide,center=true);
translate([0,-TowelBarSide/sqrt(2)]) // make access slot
rotate(-TowelBarAngle)
square(size=[2*TowelBarSide,TowelBarSide],center=false);
}
translate([0,-TowelBarSide/sqrt(2),OAH/2])
rotate([90,0,45])
sphere(r=TowelBarSide/25,$fn=4*3);
}
}
module Latch() {
difference() {
LatchPlan();
translate([BarClipRad + DoorOffset,-BarClipRad/2,-Protrusion])
cube([DoorThick,BarClipOD,RetainerDepth + Protrusion],center=false);
}
}
//-------
// Build it!
if (Layout == "Show") {
Latch();
}
if (Layout == "Build") {
translate([0,0,OAH])
rotate([180,0,0])
Latch();
}
@ednisley

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ednisley commented May 26, 2017

More details on my blog at http://wp.me/poZKh-6Nk

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