zyphlar
108 lines
4.2 KiB
OpenSCAD
108 lines
4.2 KiB
OpenSCAD
//-----------------------------------------------------------------------
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// Speaker enclosure - 4cm x 5cm x 10cm exterior, 4.5cm speaker opening
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// Built with YAPP_Box (YAPPgenerator_v3.scad)
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//-----------------------------------------------------------------------
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include <./YAPPgenerator_v3.scad>
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printBaseShell = true;
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printLidShell = true;
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// Reference "PCB" - there's no real PCB here, this block just defines
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// the box's internal footprint. Exterior = pcbLength/pcbWidth + 2*wallThickness
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// (padding = 0), so: 36 + 2*2 = 40mm, 46 + 2*2 = 50mm.
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pcbLength = 40; // X axis (front-to-back) -> 4cm exterior
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pcbWidth = 50; // Y axis (side-to-side) -> 5cm exterior
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pcbThickness = 1.6;
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standoffHeight = 0;
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standoffDiameter = 0;
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standoffPinDiameter = 0;
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pcb = [
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["Main", pcbLength, pcbWidth, 0, 0, pcbThickness,
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standoffHeight, standoffDiameter, standoffPinDiameter, 0.4]
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];
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paddingFront = 0;
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paddingBack = 0;
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paddingRight = 0;
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paddingLeft = 0;
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wallThickness = 2.0;
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basePlaneThickness = 2.0;
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lidPlaneThickness = 2.0;
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// Total exterior height = basePlaneThickness + baseWallHeight
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// + lidWallHeight + lidPlaneThickness
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// = 2 + 86 + 10 + 2 = 100mm (10cm)
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baseWallHeight = 86;
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lidWallHeight = 10;
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ridgeHeight = 5.0;
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roundRadius = 3.0;
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//---------------------------------------------------------------
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// Speaker cutout - centered on the Front face (the 5cm x 10cm face)
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// Front face local coords (yappCoordBox, corner-referenced):
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// p(0) = position from the Left edge (Y axis)
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// p(1) = position from the Bottom edge (Z axis)
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// A 45mm circle centered at Y=25, Z=50 has its bounding-box corner at:
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// p1 = 50 - 22.5 = 27.5
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//---------------------------------------------------------------
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cutoutsFront = [
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[2.5, 2.5, 0, 0, 22.5, yappCircle]
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];
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cutoutsLid = [
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[7, 14, 0, 0, 0.25*25.4, yappCircle],
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[25, 35, 0, 0, 0.125*25.4, yappCircle],
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];
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//---------------------------------------------------------------
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// Angled speaker-retaining wall
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// A near-vertical rib that rises 30mm from the front-bottom of
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// the base and leans slightly back toward the box centre. Its
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// speaker-facing surface sits 15mm behind the front (speaker)
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// wall at the floor and 17.5mm behind it at the top, so it
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// backstops the speaker and holds it against the speaker hole.
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//---------------------------------------------------------------
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frontInnerX = shellInsideLength + wallThickness; // X of inner front-wall face
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retainGapBot = 15; // mm behind the front wall at the floor
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retainGapTop = 17.5; // mm behind the front wall at the top
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retainHeight = 30; // rib height above the base floor
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retainThick = 2.4; // rib wall thickness
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retainWidth = 40; // Y span (a little wider than the speaker)
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retainYc = 27; // Y centre (matches the speaker cutout)
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retainFoot = 10; // how far the base flares back toward centre
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retainFootH = 14; // height over which the flare tapers back in
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module speakerRetainer()
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{
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xBot = frontInnerX - retainGapBot;
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xTop = frontInnerX - retainGapTop;
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zBot = basePlaneThickness;
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zTop = basePlaneThickness + retainHeight;
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// hookBaseInside() origin sits at the inner corner:
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// global = hookCoord + [wallThickness, wallThickness, basePlaneThickness]
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// X grows toward the speaker hole; the flared foot extends the other
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// way (toward box centre) so it never touches the speaker. Each layer
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// sits fully on the one below it, so it prints without support.
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translate([-wallThickness, -wallThickness, -basePlaneThickness])
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translate([0, retainYc + retainWidth/2, 0])
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rotate([90, 0, 0])
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linear_extrude(height = retainWidth)
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polygon([[xBot + retainThick, zBot], // front face, floor
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[xBot - retainFoot, zBot], // flared foot toe
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[xTop, zBot + retainFootH], // foot tapers into back face
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[xTop, zTop], // back face, top
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[xTop + retainThick, zTop]]); // front face, top
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}
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module hookBaseInside()
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{
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speakerRetainer();
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}
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showOrientation = true;
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YAPPgenerate();
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