From 8ac2cdb6ff9f9581a8e3be80ca68f9055b6f9538 Mon Sep 17 00:00:00 2001 From: Savanni D'Gerinel Date: Sun, 8 Sep 2024 13:09:04 -0400 Subject: [PATCH] Add the enclosure --- bike-lights/case/enclosure.scad | 174 ++++++++++++++++++++++++++++++++ 1 file changed, 174 insertions(+) create mode 100644 bike-lights/case/enclosure.scad diff --git a/bike-lights/case/enclosure.scad b/bike-lights/case/enclosure.scad new file mode 100644 index 0000000..953253f --- /dev/null +++ b/bike-lights/case/enclosure.scad @@ -0,0 +1,174 @@ +width = 65; +length = 75; +height = 16; +wall_thickness = 2; +guide_thickness = 1; +power_width = 21; +output_width = 37.5; +half_wall_thickness = wall_thickness / 2; +standoff_thickness = 10; +hole_diameter = 3; +// The radius of a nut in mm. However, based on my measurements, I'm not actually sure I have this right. The short height of a nut is 7.86mm. Derive from there. +nut_radius = 8.5 * cos(30) / 2; +nut_height = 2.69; // mm +screw_radius = 2; +handlebar_radius = 15; +clasp_thickness = 4; +clasp_width = 35; +circular_face_count = 96; + +module hexagon(r, h) { + pi = 3.1415926; + polyhedron( + points=[ + [r, 0, 0], + [r * cos(60), r * sin(60), 0], + [r * cos(120), r * sin(120), 0], + [r * cos(180), r * sin(180), 0], + [r * cos(240), r * sin(240), 0], + [r * cos(300), r * sin(300), 0], + + [r, 0, h], + [r * cos(60), r * sin(60), h], + [r * cos(120), r * sin(120), h], + [r * cos(180), r * sin(180), h], + [r * cos(240), r * sin(240), h], + [r * cos(300), r * sin(300), h], + ], + faces=[ + [0, 1, 2, 3, 4, 5], + [11, 10, 9, 8, 7, 6], + [6, 7, 1, 0], + [7, 8, 2, 1], + [8, 9, 3, 2], + [9, 10, 4, 3], + [10, 11, 5, 4], + [11, 6, 0, 5], + ] + ); +} + +// Nut holders are blocks that have a hole drilled through them and a hexagonal-shaped cavity. The idea is to +module nut_holder() { + difference() { + translate([-4.5, -4.5, -2]) cube([9, 9, 4]); + union() { + translate([0, 0, -1]) hexagon(nut_radius, 2); + cylinder(h = 6, r = screw_radius, center = true, $fn = 24); + } + } +} + +module screw_hole() { + union() { + translate([0, 0, 4]) cylinder(h = 2.1, r = screw_radius * 2, center = true, $fn = 24); + cylinder(h = 6, r = screw_radius, center = true, $fn = 24); + } +} + +module base() { + cube([width, length, wall_thickness]); +} + +module face() { + union() { + cube([width, length, wall_thickness / 2]); + translate([wall_thickness, wall_thickness, wall_thickness / 2]) cube([width-wall_thickness*2, length-wall_thickness*2, wall_thickness / 2]); + translate([4.5 + wall_thickness, 4.5 + wall_thickness, 4]) nut_holder(); + translate([width - 4.5 - wall_thickness, 4.5 + wall_thickness, 4]) nut_holder(); + translate([width - 4.5 - wall_thickness, length - 4.5 - wall_thickness, 4]) nut_holder(); + translate([4.5 + wall_thickness, length - 4.5 - wall_thickness, 4]) nut_holder(); + } +} + +module wall(length) { + cube([length, height, wall_thickness]); +} + +module power_wall() { + difference() { + wall(65); + translate([9, 2, -.5]) cube([power_width, height, wall_thickness + 1]); + } +} + +module output_wall() { + difference() { + wall(65); + translate([9, 2, -.5]) cube([output_width, height, wall_thickness + 1]); + } +} + +// Use hexagons as cutouts into which I can install a hex nut. This isn't quite right yet, but close. +// hexagon(nut_radius, 1); + +// cube([standoff_thickness, standoff_thickness, 2]); + +/* +difference() { + union() { + base(); + rotate([90, 0, 90]) wall(75); + // translate([width - wall_thickness, 0, 0]) rotate([90, 0, 90]) wall(length); + // rotate([90, 0, 0]) power_wall(); + // translate([0, length, 0]) rotate([90, 0, 0]) output_wall(); + // translate([wall_thickness, + // wall_thickness, + // wall_thickness]) standoff(); + // translate([width - wall_thickness - standoff_thickness, + // wall_thickness, + // wall_thickness]) standoff(); + // translate([wall_thickness, + // length - wall_thickness - standoff_thickness, + // wall_thickness]) standoff(); + // translate([width - wall_thickness - standoff_thickness, + // length - wall_thickness - standoff_thickness, + // wall_thickness]) standoff(); + } + // translate([-half_wall_thickness, -wall_thickness - half_wall_thickness, height - half_wall_thickness]) cube([wall_thickness, length + wall_thickness * 2, wall_thickness]); + // translate([width - half_wall_thickness, -wall_thickness - half_wall_thickness, height - half_wall_thickness]) cube([wall_thickness, length + wall_thickness * 2, wall_thickness]); + // translate([-half_wall_thickness, -half_wall_thickness, height - half_wall_thickness]) rotate([0, 0, 270]) cube([wall_thickness, width + wall_thickness * 2, wall_thickness]); + // translate([-half_wall_thickness, length + half_wall_thickness, height - half_wall_thickness]) rotate([0, 0, 270]) cube([wall_thickness, width + wall_thickness * 2, wall_thickness]); +} +*/ + +module box() { + difference() { + union() { + cube([width, length, wall_thickness * 2]); + translate([0, 0, wall_thickness]) rotate([90, 0, 90]) wall(length); + translate([width - wall_thickness, 0, wall_thickness]) rotate([90, 0, 90]) wall(length); + translate([0, wall_thickness, wall_thickness]) rotate([90, 0, 0]) wall(width); + translate([0, length, wall_thickness]) rotate([90, 0, 0]) wall(width); + } + translate([4.5 + wall_thickness, 4.5 + wall_thickness, 4]) rotate([180, 0, 0]) screw_hole(); + translate([width - 4.5 - wall_thickness, 4.5 + wall_thickness, 4]) rotate([180, 0, 0]) screw_hole(); + translate([width - 4.5 - wall_thickness, length - 4.5 - wall_thickness, 4]) rotate([180, 0, 0]) screw_hole(); + translate([4.5 + wall_thickness, length - 4.5 - wall_thickness, 4]) rotate([180, 0, 0]) screw_hole(); + } +} + +module top_clasp() { + difference() { + union() { + cylinder(h = clasp_width, r = handlebar_radius + clasp_thickness, center = true, $fn = circular_face_count); + translate([0, 0, -clasp_width / 2]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1.5, center = true, $fn = circular_face_count); + translate([0, 0, -clasp_width / 2 + 4]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1.5, center = true, $fn = circular_face_count); + translate([0, 0, clasp_width / 2]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1.5, center = true, $fn = circular_face_count); + translate([0, 0, clasp_width / 2 - 4]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1.5, center = true, $fn = circular_face_count); + translate([-handlebar_radius-5, -10, -clasp_width / 2 + 6]) cube([6, 20, clasp_width - 12]); + } + translate([-0.5, 0, 0]) cylinder(h = clasp_width+2, r = handlebar_radius + 1, center = true, $fn = circular_face_count); + translate([-0.5, -handlebar_radius - 10, -clasp_width / 2 - 1]) cube([handlebar_radius + 10, handlebar_radius * 2 + 20, clasp_width + 2]); + } +} + +module body() { + union() { + box(); + // translate([width / 2, length / 2, -5 - handlebar_radius]) rotate([0, 90, 90]) top_clasp(); + } +} + +body(); +// translate([width + 10, 0, 0]) face();