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 module arm_half(){
  23   square(inner_block / 2);
  24   rotate(45) {
  25     square([diagonal - major_block_corner_radius, wall / 2]); }
  26   translate([x / 2 - corner_block_inner, y / 2 - corner_block_inner]) {
  27     square(corner_block_inner - wall); }
  28   translate([(opening_width + major_block_corner_diameter) / 2,
  29              y/2 - wall]) {
  30     square([(x - opening_width - 2 * major_block_corner_diameter) / 2,
  31             wall]);
  32     translate([0, wall/2]){
  33       circle(wall / 2); } }
  34   translate([(x - major_block_corner_diameter) / 2,
  35              (y - major_block_corner_diameter) / 2]) {
  36     circle(major_block_corner_radius); } }
  37
  38 arms = 4;
  39 for(arm = [0:arms - 1]) {
  40   rotate(arm * 360 / arms) {
  41     arm_half();
  42     mirror(){ arm_half(); } } }
  43
  44 /*
  45   This file is part of 3d-printables.
  46
  47   3d-printables is free software: you can redistribute it and/or modify
  48   it under the terms of the GNU Affero General Public License as published by
  49   the Free Software Foundation, either version 3 of the License, or
  50   (at your option) any later version.
  51
  52   3d-printables is distributed in the hope that it will be useful,
  53   but WITHOUT ANY WARRANTY; without even the implied warranty of
  54   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  55   GNU Affero General Public License for more details.
  56
  57   You should have received a copy of the GNU Affero General Public License
  58   along with challenge-bot.  If not, see <http://www.gnu.org/licenses/>.
  59 */