challenge-bot.com Git - ozzloy@gmail.com/3d-printables/blob - mk2-haribo-spool-holder.scad

   1 /* GNU AGPLv3 (or later at your option)
   2    see bottom for more license info */
   3
   4 /* measurements from misumi's 3030 aluminum extrusion data sheet
   5    https://us.misumi-ec.com/pdf/fa/2012/p2_0545.pdf
   6 */
   7
   8 x = 30;
   9 y = 30;
  10 diagonal = sqrt(pow(30/2, 2) + pow(30/2, 2));
  11 opening_width = 8;
  12 inner_block = 12;
  13
  14 major_block_corner_diameter = 4;
  15 major_block_corner_radius = major_block_corner_diameter / 2;
  16
  17 corner_block_inner = (30 - 16.5) / 2;
  18 wall = 2;
  19
  20 $fn = 40;
  21
  22 intersection(){
  23   minkowski() {
  24     square(x - major_block_corner_diameter, center=true);
  25     circle(major_block_corner_radius); }
  26
  27   union(){
  28     arms = 4;
  29     for(arm = [0:arms - 1]) {
  30       rotate(arm * 360 / arms) {
  31         square(inner_block / 2);
  32         rotate(45) {
  33           translate([diagonal/2, 0]) {
  34             square([diagonal, wall], center=true); } }
  35         translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) {
  36           square([corner_block_inner, corner_block_inner]); }
  37         translate([opening_width / 2, y/2 - wall]) {
  38           square([(x - opening_width) / 2, wall]); }
  39         translate([x / 2 - wall, opening_width / 2]) {
  40           square([wall, (y - opening_width) / 2]); } } } } }
  41
  42 /*
  43   This file is part of 3d-printables.
  44
  45   3d-printables is free software: you can redistribute it and/or modify
  46   it under the terms of the GNU Affero General Public License as published by
  47   the Free Software Foundation, either version 3 of the License, or
  48   (at your option) any later version.
  49
  50   3d-printables is distributed in the hope that it will be useful,
  51   but WITHOUT ANY WARRANTY; without even the implied warranty of
  52   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  53   GNU Affero General Public License for more details.
  54
  55   You should have received a copy of the GNU Affero General Public License
  56   along with challenge-bot.  If not, see <http://www.gnu.org/licenses/>.
  57 */