toothbrush-holder-9x2.scad

   1 eps=0.01;
   2 infty=400;
   3
   4 off_center = 112;
   5 ext_angle = 56;
   6
   7 main_depth = 42;
   8
   9 module off_c() {
  10         translate([0, -off_center, 0])
  11                 children();
  12 };
  13
  14 module off_c_rot(angle) {
  15         off_c()
  16         rotate([0, 0, angle])
  17         translate([0, off_center, 0])
  18                 children();
  19 }
  20
  21 module interdental_hole() {
  22         translate([0, 0, -infty/2])
  23                 cylinder(r=4.1, h=infty);
  24         translate([0, 0, 20])
  25         scale ([2, 1, 1]) sphere(10, center=true);
  26 }
  27
  28 module toothbrush_hole() {
  29         difference() {
  30                 union() {
  31                         translate([0, 0, 2])
  32                                 cylinder(r1=4, r2=8, h = 13);
  33                         translate([0, 0, -1])
  34                                 cylinder(r=4, h = 3+eps);
  35                 };
  36                 translate([-infty/2, -4.5-infty, -infty/2])
  37                         cube(infty);
  38         }
  39         translate([-3, 0, -infty/2]) cube([6, infty, infty]);
  40 }
  41
  42 module body() {
  43         intersection() {
  44                 off_c() rotate([0, 0, 0]) {
  45                         cylinder(r = main_depth + off_center, h = 12, $fn = 60);
  46                         //translate([0, 0, 12-eps])
  47                         //      cylinder(r1 = 150, r2 = 0,h = 10, $fn = 60);
  48                 };
  49                 translate([-infty/2, 0, -infty/2]) cube(infty);
  50                 off_c_rot(ext_angle/2) translate([0, -infty/2, -infty/2]) cube(infty);
  51                 off_c_rot(-ext_angle/2) translate([0, -infty/2, -infty/2])
  52                         scale([-1, 1, 1]) cube(infty);
  53         };
  54         // rear-side protrusion
  55         translate([-50, 1, 6])
  56                 rotate([0, 90, 0])
  57                         cylinder(r=3, h=40, $fn=4);
  58         // rear-side protrusion
  59         translate([10, 1, 6])
  60                 rotate([0, 90, 0])
  61                         cylinder(r=3, h=40, $fn=4);
  62         // off_c() cube(1, center=true);
  63 };
  64
  65 module body_neg() {
  66         // screw head hole
  67         rotate([-90, 0, 0])
  68                 translate([0,-6,5])
  69                 cylinder(r=3.5, h=infty);
  70         // screw head
  71         rotate([-90, 0, 0])
  72                 translate([0,-6,-infty/2])
  73                 cylinder(r=1.75, h=infty, $fn=6);
  74
  75         for (angle = [-24:6:24]) {
  76                 off_c_rot(angle)
  77                         translate([0, 38, 0])
  78                                 render() toothbrush_hole();
  79                 for (dist = [17,27])
  80                         off_c_rot(angle)
  81                         translate([0, dist, 0])
  82                                 interdental_hole();
  83         }
  84 }
  85
  86 difference() {
  87         body();
  88         body_neg();
  89 }
  90