124 lines
3.6 KiB
OpenSCAD
124 lines
3.6 KiB
OpenSCAD
// Parametric LED bar vertical stand socket
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// For a bar nominally 14 x 17 mm, 2 m long.
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// This part is intended to be screwed to an MDF base.
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// -------------------------
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// User parameters
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// -------------------------
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bar_w = 14; // Bar width (mm)
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bar_d = 17; // Bar depth (mm)
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clearance = 0.4; // Total clearance added to each axis (mm)
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socket_height = 36; // Height of printed socket body (mm)
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wall = 3.2; // Socket wall thickness (mm)
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base_thickness = 5; // Printed bottom plate thickness (mm)
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// USB cable/connector side opening
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usb_notch_enable = true;
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usb_notch_w = 11;
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usb_notch_h = 9;
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usb_notch_from_bottom = 6;
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usb_notch_side = "right"; // "right" or "left"
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// Mounting ears for MDF screws
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ear_enable = true;
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ear_len = 16;
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ear_w = 16;
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ear_thickness = base_thickness;
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screw_hole_d = 4.2; // M4 clearance. Use 3.4 for M3.
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screw_hole_edge = 5.5; // Hole center offset from ear outer corner
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// Optional clamp lip at top to reduce wobble
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top_lip_enable = true;
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top_lip_depth = 2.0; // Intrudes into opening on each side
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top_lip_height = 3.0;
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$fn = 48;
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// -------------------------
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// Derived
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// -------------------------
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inner_w = bar_w + clearance;
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inner_d = bar_d + clearance;
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outer_w = inner_w + wall * 2;
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outer_d = inner_d + wall * 2;
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outer_h = socket_height;
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module screw_hole() {
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cylinder(h = ear_thickness + 0.2, d = screw_hole_d);
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}
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module mounting_ear(sign_y = 1) {
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translate([outer_w / 2, sign_y * (outer_d / 2), 0])
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cube([ear_len, ear_w, ear_thickness], center = false);
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}
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module top_lip() {
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if (top_lip_enable) {
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// Front and back lips at the top of the socket.
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translate([wall, wall, outer_h - top_lip_height])
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cube([top_lip_depth, inner_d, top_lip_height]);
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translate([outer_w - wall - top_lip_depth, wall, outer_h - top_lip_height])
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cube([top_lip_depth, inner_d, top_lip_height]);
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}
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}
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difference() {
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union() {
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// Main body
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cube([outer_w, outer_d, outer_h], center = false);
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// Base plate under socket for stiffness
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translate([0, 0, -base_thickness])
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cube([outer_w, outer_d, base_thickness], center = false);
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// Mounting ears
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if (ear_enable) {
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translate([0, 0, -ear_thickness]) {
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mounting_ear(1);
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mounting_ear(-1);
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}
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}
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top_lip();
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}
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// Main bar cavity
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translate([wall, wall, 0])
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cube([inner_w, inner_d, outer_h + 0.2], center = false);
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// USB side notch
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if (usb_notch_enable) {
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if (usb_notch_side == "right") {
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translate([outer_w - wall - 0.1, (outer_d - usb_notch_w) / 2, usb_notch_from_bottom])
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cube([wall + 0.3, usb_notch_w, usb_notch_h], center = false);
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} else {
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translate([-0.2, (outer_d - usb_notch_w) / 2, usb_notch_from_bottom])
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cube([wall + 0.3, usb_notch_w, usb_notch_h], center = false);
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}
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}
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// Screw holes in ears
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if (ear_enable) {
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// Upper ear hole
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translate([
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outer_w / 2 + ear_len - screw_hole_edge,
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outer_d / 2 + ear_w - screw_hole_edge,
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-ear_thickness - 0.05
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]) screw_hole();
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// Lower ear hole
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translate([
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outer_w / 2 + ear_len - screw_hole_edge,
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-outer_d / 2 + screw_hole_edge,
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-ear_thickness - 0.05
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]) screw_hole();
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}
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}
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// Print orientation helper:
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// Keep the base/ears on the bed.
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// If fit is tight, increase clearance to 0.5 or 0.6.
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