| 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 | opening_depth = 9; |
| 13 | slot_major_width = 16.5; |
| 14 | inner_block = 12; |
| 15 | inner_hole = 6.8 / 2; |
| 16 | |
| 17 | major_block_corner_diameter = 4; |
| 18 | major_block_corner_radius = major_block_corner_diameter / 2; |
| 19 | major_block = 30 - major_block_corner_diameter; |
| 20 | |
| 21 | corner_block_inner = (30 - 16.5) / 2; |
| 22 | wall = 2; |
| 23 | |
| 24 | $fn = 40; |
| 25 | |
| 26 | intersection(){ |
| 27 | minkowski() { |
| 28 | square(x - major_block_corner_diameter, center=true); |
| 29 | circle(major_block_corner_radius); } |
| 30 | |
| 31 | union(){ |
| 32 | square(inner_block / 2); |
| 33 | rotate(45) translate([diagonal/2, 0]) square([diagonal, wall], center=true); |
| 34 | translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) { |
| 35 | square([corner_block_inner, corner_block_inner]); } |
| 36 | translate([opening_width / 2, y/2 - wall]) { |
| 37 | square([(x - opening_width) / 2, wall]); } |
| 38 | |
| 39 | mirror([1, -1]) { |
| 40 | square(inner_block / 2); |
| 41 | rotate(45) { |
| 42 | translate([diagonal/2, 0]) { |
| 43 | square([diagonal, wall], center=true); } } |
| 44 | translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) { |
| 45 | square([corner_block_inner, corner_block_inner]); } |
| 46 | translate([opening_width / 2, y/2 - wall]) { |
| 47 | square([(x - opening_width) / 2, wall]); } } |
| 48 | |
| 49 | rotate(90){ |
| 50 | square(inner_block / 2); |
| 51 | rotate(45) { |
| 52 | translate([diagonal/2, 0]) { |
| 53 | square([diagonal, wall], center=true); } } |
| 54 | translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) { |
| 55 | square([corner_block_inner, corner_block_inner]); } |
| 56 | translate([opening_width / 2, y/2 - wall]) { |
| 57 | square([(x - opening_width) / 2, wall]); } |
| 58 | |
| 59 | mirror([1, -1]) { |
| 60 | square(inner_block / 2); |
| 61 | rotate(45) { |
| 62 | translate([diagonal/2, 0]) { |
| 63 | square([diagonal, wall], center=true); } } |
| 64 | translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) { |
| 65 | square([corner_block_inner, corner_block_inner]); } |
| 66 | translate([opening_width / 2, y/2 - wall]) { |
| 67 | square([(x - opening_width) / 2, wall]); } } } |
| 68 | |
| 69 | rotate(180){ |
| 70 | square(inner_block / 2); |
| 71 | rotate(45) { |
| 72 | translate([diagonal/2, 0]) { |
| 73 | square([diagonal, wall], center=true); } } |
| 74 | translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) { |
| 75 | square([corner_block_inner, corner_block_inner]); } |
| 76 | translate([opening_width / 2, y/2 - wall]) { |
| 77 | square([(x - opening_width) / 2, wall]); } |
| 78 | |
| 79 | mirror([1, -1]) { |
| 80 | square(inner_block / 2); |
| 81 | rotate(45) { |
| 82 | translate([diagonal/2, 0]) { |
| 83 | square([diagonal, wall], center=true); } } |
| 84 | translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) { |
| 85 | square([corner_block_inner, corner_block_inner]); } |
| 86 | translate([opening_width / 2, y/2 - wall]) { |
| 87 | square([(x - opening_width) / 2, wall]); } } } |
| 88 | |
| 89 | rotate(270){ |
| 90 | square(inner_block / 2); |
| 91 | rotate(45) { |
| 92 | translate([diagonal/2, 0]) { |
| 93 | square([diagonal, wall], center=true); } } |
| 94 | translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) { |
| 95 | square([corner_block_inner, corner_block_inner]); } |
| 96 | translate([opening_width / 2, y/2 - wall]) { |
| 97 | square([(x - opening_width) / 2, wall]); } |
| 98 | |
| 99 | mirror([1, -1]) { |
| 100 | square(inner_block / 2); |
| 101 | rotate(45) { |
| 102 | translate([diagonal/2, 0]) { |
| 103 | square([diagonal, wall], center=true); } } |
| 104 | translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) { |
| 105 | square([corner_block_inner, corner_block_inner]); } |
| 106 | translate([opening_width / 2, y/2 - wall]) { |
| 107 | square([(x - opening_width) / 2, wall]); } } } } } |
| 108 | |
| 109 | /* |
| 110 | This file is part of 3d-printables. |
| 111 | |
| 112 | 3d-printables is free software: you can redistribute it and/or modify |
| 113 | it under the terms of the GNU Affero General Public License as published by |
| 114 | the Free Software Foundation, either version 3 of the License, or |
| 115 | (at your option) any later version. |
| 116 | |
| 117 | 3d-printables is distributed in the hope that it will be useful, |
| 118 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 119 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 120 | GNU Affero General Public License for more details. |
| 121 | |
| 122 | You should have received a copy of the GNU Affero General Public License |
| 123 | along with challenge-bot. If not, see <http://www.gnu.org/licenses/>. |
| 124 | */ |