| 1 | /* |
| 2 | challenge-bot |
| 3 | project available here: |
| 4 | https://challenge-bot.com/ |
| 5 | |
| 6 | Copyright (C) 2016 Daniel Watson |
| 7 | See the end of the file for license conditions. |
| 8 | tl;dr GNU AGPLv3 (or later at your option) |
| 9 | */ |
| 10 | |
| 11 | /* |
| 12 | open source hardware logo data |
| 13 | this file contains all the data, and nothing else |
| 14 | see open-source-hardware-logo.scad for example use |
| 15 | */ |
| 16 | |
| 17 | // keep around 20 for editing, 100 for final output |
| 18 | $fn = 100; |
| 19 | |
| 20 | open_source_hardware_logo_radius = 10; |
| 21 | open_source_hardware_logo_depth = 5; |
| 22 | |
| 23 | module octogon_slice_upper_half(radius) { |
| 24 | polygon([[0, 0], |
| 25 | [radius, tan(360 / (8 * 2)) * radius], |
| 26 | [radius, 0]]); } |
| 27 | |
| 28 | module open_source_hardware_spoke_upper_half(radius) { |
| 29 | difference(){ |
| 30 | octogon_slice_upper_half(radius); |
| 31 | circle(radius / 4); |
| 32 | translate([radius * 3 / 4, |
| 33 | (5 / 12) * tan(360 / (8 * 2)) * radius]) { |
| 34 | rotate(-360 / 32) { |
| 35 | square(radius); } |
| 36 | rotate(360 / 16) { |
| 37 | square(radius); } } } } |
| 38 | |
| 39 | module open_source_hardware_spoke(radius) { |
| 40 | open_source_hardware_spoke_upper_half(radius); |
| 41 | mirror([0, 1, 0]) { |
| 42 | open_source_hardware_spoke_upper_half(radius); } } |
| 43 | |
| 44 | module open_source_hardware_logo_2d(radius) { |
| 45 | for(spoke_number = [-1 : 5]){ |
| 46 | rotate(spoke_number * (360 / 8)) { |
| 47 | open_source_hardware_spoke(radius); } } } |
| 48 | |
| 49 | module open_source_hardware_logo(radius, depth) { |
| 50 | linear_extrude(height = depth) { |
| 51 | open_source_hardware_logo_2d(radius); } } |
| 52 | |
| 53 | /* |
| 54 | This file is part of challenge-bot. |
| 55 | |
| 56 | Challenge-bot is free software: you can redistribute it and/or modify |
| 57 | it under the terms of the GNU Affero General Public License as published by |
| 58 | the Free Software Foundation, either version 3 of the License, or |
| 59 | (at your option) any later version. |
| 60 | |
| 61 | GNU Affero Emacs is distributed in the hope that it will be useful, |
| 62 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 63 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 64 | GNU Affero General Public License for more details. |
| 65 | |
| 66 | You should have received a copy of the GNU Affero General Public License |
| 67 | along with challenge-bot. If not, see <http://www.gnu.org/licenses/>. |
| 68 | */ |