Werner's Miscellanea
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| 1 | epsilon = 0.01; |
| 2 | |
| 3 | but_top_x = 10; |
| 4 | but_top_y = but_top_x+5; |
| 5 | but_top_z = 1.5; |
| 6 | |
| 7 | but_corner_r = 2; |
| 8 | |
| 9 | but_base_border = 1; |
| 10 | but_base_x = but_top_x+2*but_base_border; |
| 11 | but_base_y = but_top_y+2*but_base_border; |
| 12 | but_base_z = 0.5; |
| 13 | |
| 14 | but_fillet_r = 0.4; |
| 15 | but_chamfer_r = 0.2; |
| 16 | |
| 17 | $fn = 40; |
| 18 | |
| 19 | |
| 20 | /* ----- Basic solids ------------------------------------------------------ */ |
| 21 | |
| 22 | |
| 23 | module torus(r0, r1) |
| 24 | { |
| 25 | rotate_extrude() |
| 26 | translate([r0, 0, 0]) |
| 27 | circle(r = r1); |
| 28 | } |
| 29 | |
| 30 | |
| 31 | /* ----- Helper elements for fillets --------------------------------------- */ |
| 32 | |
| 33 | |
| 34 | module fillet_line(x, r) |
| 35 | { |
| 36 | translate([-x/2, 0, 0]) |
| 37 | difference() { |
| 38 | cube([x, r, r]); |
| 39 | translate([0, r, r]) |
| 40 | rotate([0, 90, 0]) |
| 41 | translate([0, 0, -epsilon]) |
| 42 | cylinder(h = x+2*epsilon, r = r); |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | |
| 47 | module fillet_circle(r, fillet_r) |
| 48 | { |
| 49 | difference() { |
| 50 | cylinder(h = fillet_r, r = r+fillet_r); |
| 51 | translate([0, 0, fillet_r]) |
| 52 | torus(r+fillet_r, fillet_r); |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | |
| 57 | /* ----- Helper elements for chamfers -------------------------------------- */ |
| 58 | |
| 59 | |
| 60 | module chamfer_line(x, r) |
| 61 | { |
| 62 | translate([-x/2, -r, -r]) |
| 63 | difference() { |
| 64 | cube([x, r+epsilon, r+epsilon]); |
| 65 | rotate([0, 90, 0]) |
| 66 | translate([0, 0, -epsilon]) |
| 67 | cylinder(h = x+2*epsilon, r = r); |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | |
| 72 | module chamfer_circle(r, fillet_r) |
| 73 | { |
| 74 | difference() { |
| 75 | translate([-r-epsilon, -r-epsilon, -fillet_r]) |
| 76 | cube([2*(r+epsilon), 2*(r+epsilon), fillet_r+epsilon]); |
| 77 | translate([0, 0, -fillet_r]) |
| 78 | cylinder(h = fillet_r, r = r-fillet_r); |
| 79 | translate([0, 0, -fillet_r]) |
| 80 | torus(r-fillet_r, fillet_r); |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | |
| 85 | /* ----- Box with rounded corners ------------------------------------------ */ |
| 86 | |
| 87 | |
| 88 | module rbox_core(x, y, z, r) |
| 89 | { |
| 90 | union() { |
| 91 | translate([0, 0, z/2]) |
| 92 | cube([x-2*r, y, z], center = true); |
| 93 | translate([0, 0, z/2]) |
| 94 | cube([x, y-2*r, z], center = true); |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | |
| 99 | module rbox(x, y, z, r) |
| 100 | { |
| 101 | union() { |
| 102 | rbox_core(x, y, z, r); |
| 103 | for (dx = [-1, 1]) { |
| 104 | for (dy = [-1, 1]) { |
| 105 | translate([dx*(x/2-r), dy*(y/2-r), 0]) |
| 106 | cylinder(h = z, r = r); |
| 107 | } |
| 108 | } |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | |
| 113 | module rbox_fillet_bottom(x, y, z, r, fillet_r) |
| 114 | { |
| 115 | union() { |
| 116 | for (a = [0, 180]) { |
| 117 | rotate([0, 0, a]) |
| 118 | translate([0, y/2, 0]) |
| 119 | fillet_line(x-2*r, fillet_r); |
| 120 | rotate([0, 0, a+90]) |
| 121 | translate([0, x/2, 0]) |
| 122 | fillet_line(y-2*r, fillet_r); |
| 123 | } |
| 124 | for (dx = [-1, 1]) { |
| 125 | for (dy = [-1, 1]) { |
| 126 | translate([dx*(x/2-r), dy*(y/2-r), 0]) |
| 127 | fillet_circle(r, fillet_r); |
| 128 | } |
| 129 | } |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | |
| 134 | module rbox_chamfer_top_corners(x, y, z, r, chamfer_r) |
| 135 | { |
| 136 | difference() { |
| 137 | union() { |
| 138 | for (dx = [-1, 1]) { |
| 139 | for (dy = [-1, 1]) { |
| 140 | translate([dx*(x/2-r), dy*(y/2-r), z]) |
| 141 | chamfer_circle(r, chamfer_r); |
| 142 | } |
| 143 | } |
| 144 | } |
| 145 | rbox_core(x-epsilon, y-epsilon, z, r); |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | |
| 150 | module rbox_chamfer_top(x, y, z, r, chamfer_r) |
| 151 | { |
| 152 | union() { |
| 153 | for (a = [0, 180]) { |
| 154 | rotate([0, 0, a]) |
| 155 | translate([0, y/2, z]) |
| 156 | chamfer_line(x-2*r, chamfer_r); |
| 157 | rotate([0, 0, a+90]) |
| 158 | translate([0, x/2, z]) |
| 159 | chamfer_line(y-2*r, chamfer_r); |
| 160 | } |
| 161 | rbox_chamfer_top_corners(x, y, z, r, chamfer_r); |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | |
| 166 | module rbox_chamfer_bottom(x, y, z, r, chamfer_r) |
| 167 | { |
| 168 | rotate([180, 0, 0]) |
| 169 | translate([0, 0, -z]) |
| 170 | rbox_chamfer_top(x, y, z, r, chamfer_r); |
| 171 | } |
| 172 | |
| 173 | |
| 174 | /* ----- Button ------------------------------------------------------------ */ |
| 175 | |
| 176 | |
| 177 | module button_top() |
| 178 | { |
| 179 | union() { |
| 180 | difference() { |
| 181 | rbox(but_top_x, but_top_y, but_top_z, but_corner_r); |
| 182 | rbox_chamfer_top(but_top_x, but_top_y, but_top_z, but_corner_r, but_chamfer_r); |
| 183 | } |
| 184 | rbox_fillet_bottom(but_top_x, but_top_y, but_top_z, |
| 185 | but_corner_r, but_fillet_r); |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | |
| 190 | module button_base() |
| 191 | { |
| 192 | translate([0, 0, -but_base_z]) |
| 193 | difference() { |
| 194 | rbox(but_base_x, but_base_y, but_base_z, but_corner_r); |
| 195 | rbox_chamfer_top(but_base_x, but_base_y, but_base_z, |
| 196 | but_corner_r, but_chamfer_r); |
| 197 | rbox_chamfer_bottom(but_base_x, but_base_y, but_base_z, |
| 198 | but_corner_r, but_chamfer_r); |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | |
| 203 | module button() |
| 204 | { |
| 205 | union() { |
| 206 | button_top(); |
| 207 | button_base(); |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | |
| 212 | button(); |
| 213 |
Branches:
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