├── README.md └── LICENSE /README.md: -------------------------------------------------------------------------------- 1 | # acorn-mechanical-designs 2 | 3 | Acorn's mechanical designs are stored in onshape. 4 | https://cad.onshape.com/documents/96f5b83bdb2e3e2dbf393685 5 | 6 | Acorn's mechanical designs are licensed with CERN-OHL-P. 7 | See LICENSE file for details. 8 | 9 | For more information on Acorn see: 10 | http://community.twistedfields.com 11 | 12 | For a free onshape account, make sure to sign up at the following link: 13 | https://www.onshape.com/en/products/free -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Preamble 2 | 3 | CERN has developed this licence to promote collaboration among 4 | hardware designers and to provide a legal tool which supports the 5 | freedom to use, study, modify, share and distribute hardware designs 6 | and products based on those designs. Version 2 of the CERN Open 7 | Hardware Licence comes in three variants: this licence, CERN-OHL-P 8 | (permissive); and two reciprocal licences: CERN-OHL-W (weakly 9 | reciprocal) and CERN-OHL-S (strongly reciprocal). 10 | 11 | The CERN-OHL-P is copyright CERN 2020. Anyone is welcome to use it, in 12 | unmodified form only. 13 | 14 | Use of this Licence does not imply any endorsement by CERN of any 15 | Licensor or their designs nor does it imply any involvement by CERN in 16 | their development. 17 | 18 | 1 Definitions 19 | 20 | 1.1 'Licence' means this CERN-OHL-P. 21 | 22 | 1.2 'Source' means information such as design materials or digital 23 | code which can be applied to Make or test a Product or to 24 | prepare a Product for use, Conveyance or sale, regardless of its 25 | medium or how it is expressed. It may include Notices. 26 | 27 | 1.3 'Covered Source' means Source that is explicitly made available 28 | under this Licence. 29 | 30 | 1.4 'Product' means any device, component, work or physical object, 31 | whether in finished or intermediate form, arising from the use, 32 | application or processing of Covered Source. 33 | 34 | 1.5 'Make' means to create or configure something, whether by 35 | manufacture, assembly, compiling, loading or applying Covered 36 | Source or another Product or otherwise. 37 | 38 | 1.6 'Notice' means copyright, acknowledgement and trademark notices, 39 | references to the location of any Notices, modification notices 40 | (subsection 3.3(b)) and all notices that refer to this Licence 41 | and to the disclaimer of warranties that are included in the 42 | Covered Source. 43 | 44 | 1.7 'Licensee' or 'You' means any person exercising rights under 45 | this Licence. 46 | 47 | 1.8 'Licensor' means a person who creates Source or modifies Covered 48 | Source and subsequently Conveys the resulting Covered Source 49 | under the terms and conditions of this Licence. A person may be 50 | a Licensee and a Licensor at the same time. 51 | 52 | 1.9 'Convey' means to communicate to the public or distribute. 53 | 54 | 55 | 2 Applicability 56 | 57 | 2.1 This Licence governs the use, copying, modification, Conveying 58 | of Covered Source and Products, and the Making of Products. By 59 | exercising any right granted under this Licence, You irrevocably 60 | accept these terms and conditions. 61 | 62 | 2.2 This Licence is granted by the Licensor directly to You, and 63 | shall apply worldwide and without limitation in time. 64 | 65 | 2.3 You shall not attempt to restrict by contract or otherwise the 66 | rights granted under this Licence to other Licensees. 67 | 68 | 2.4 This Licence is not intended to restrict fair use, fair dealing, 69 | or any other similar right. 70 | 71 | 72 | 3 Copying, Modifying and Conveying Covered Source 73 | 74 | 3.1 You may copy and Convey verbatim copies of Covered Source, in 75 | any medium, provided You retain all Notices. 76 | 77 | 3.2 You may modify Covered Source, other than Notices. 78 | 79 | You may only delete Notices if they are no longer applicable to 80 | the corresponding Covered Source as modified by You and You may 81 | add additional Notices applicable to Your modifications. 82 | 83 | 3.3 You may Convey modified Covered Source (with the effect that You 84 | shall also become a Licensor) provided that You: 85 | 86 | a) retain Notices as required in subsection 3.2; and 87 | 88 | b) add a Notice to the modified Covered Source stating that You 89 | have modified it, with the date and brief description of how 90 | You have modified it. 91 | 92 | 3.4 You may Convey Covered Source or modified Covered Source under 93 | licence terms which differ from the terms of this Licence 94 | provided that You: 95 | 96 | a) comply at all times with subsection 3.3; and 97 | 98 | b) provide a copy of this Licence to anyone to whom You 99 | Convey Covered Source or modified Covered Source. 100 | 101 | 102 | 4 Making and Conveying Products 103 | 104 | You may Make Products, and/or Convey them, provided that You ensure 105 | that the recipient of the Product has access to any Notices applicable 106 | to the Product. 107 | 108 | 109 | 5 DISCLAIMER AND LIABILITY 110 | 111 | 5.1 DISCLAIMER OF WARRANTY -- The Covered Source and any Products 112 | are provided 'as is' and any express or implied warranties, 113 | including, but not limited to, implied warranties of 114 | merchantability, of satisfactory quality, non-infringement of 115 | third party rights, and fitness for a particular purpose or use 116 | are disclaimed in respect of any Source or Product to the 117 | maximum extent permitted by law. The Licensor makes no 118 | representation that any Source or Product does not or will not 119 | infringe any patent, copyright, trade secret or other 120 | proprietary right. The entire risk as to the use, quality, and 121 | performance of any Source or Product shall be with You and not 122 | the Licensor. This disclaimer of warranty is an essential part 123 | of this Licence and a condition for the grant of any rights 124 | granted under this Licence. 125 | 126 | 5.2 EXCLUSION AND LIMITATION OF LIABILITY -- The Licensor shall, to 127 | the maximum extent permitted by law, have no liability for 128 | direct, indirect, special, incidental, consequential, exemplary, 129 | punitive or other damages of any character including, without 130 | limitation, procurement of substitute goods or services, loss of 131 | use, data or profits, or business interruption, however caused 132 | and on any theory of contract, warranty, tort (including 133 | negligence), product liability or otherwise, arising in any way 134 | in relation to the Covered Source, modified Covered Source 135 | and/or the Making or Conveyance of a Product, even if advised of 136 | the possibility of such damages, and You shall hold the 137 | Licensor(s) free and harmless from any liability, costs, 138 | damages, fees and expenses, including claims by third parties, 139 | in relation to such use. 140 | 141 | 142 | 6 Patents 143 | 144 | 6.1 Subject to the terms and conditions of this Licence, each 145 | Licensor hereby grants to You a perpetual, worldwide, 146 | non-exclusive, no-charge, royalty-free, irrevocable (except as 147 | stated in this section 6, or where terminated by the Licensor 148 | for cause) patent licence to Make, have Made, use, offer to 149 | sell, sell, import, and otherwise transfer the Covered Source 150 | and Products, where such licence applies only to those patent 151 | claims licensable by such Licensor that are necessarily 152 | infringed by exercising rights under the Covered Source as 153 | Conveyed by that Licensor. 154 | 155 | 6.2 If You institute patent litigation against any entity (including 156 | a cross-claim or counterclaim in a lawsuit) alleging that the 157 | Covered Source or a Product constitutes direct or contributory 158 | patent infringement, or You seek any declaration that a patent 159 | licensed to You under this Licence is invalid or unenforceable 160 | then any rights granted to You under this Licence shall 161 | terminate as of the date such process is initiated. 162 | 163 | 164 | 7 General 165 | 166 | 7.1 If any provisions of this Licence are or subsequently become 167 | invalid or unenforceable for any reason, the remaining 168 | provisions shall remain effective. 169 | 170 | 7.2 You shall not use any of the name (including acronyms and 171 | abbreviations), image, or logo by which the Licensor or CERN is 172 | known, except where needed to comply with section 3, or where 173 | the use is otherwise allowed by law. Any such permitted use 174 | shall be factual and shall not be made so as to suggest any kind 175 | of endorsement or implication of involvement by the Licensor or 176 | its personnel. 177 | 178 | 7.3 CERN may publish updated versions and variants of this Licence 179 | which it considers to be in the spirit of this version, but may 180 | differ in detail to address new problems or concerns. New 181 | versions will be published with a unique version number and a 182 | variant identifier specifying the variant. If the Licensor has 183 | specified that a given variant applies to the Covered Source 184 | without specifying a version, You may treat that Covered Source 185 | as being released under any version of the CERN-OHL with that 186 | variant. If no variant is specified, the Covered Source shall be 187 | treated as being released under CERN-OHL-S. The Licensor may 188 | also specify that the Covered Source is subject to a specific 189 | version of the CERN-OHL or any later version in which case You 190 | may apply this or any later version of CERN-OHL with the same 191 | variant identifier published by CERN. 192 | 193 | 7.4 This Licence shall not be enforceable except by a Licensor 194 | acting as such, and third party beneficiary rights are 195 | specifically excluded. 196 | --------------------------------------------------------------------------------