diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..091073d
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,1051 @@
+
+The hardware is largely inspired by and use parts from the Affordable Rock Tumbler (https://www.thingiverse.com/thing:935252) by J_T_3_D (https://www.thingiverse.com/J_T_3_D/about)
+Hardware is under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported
+
+Software Code is under GNU GPL v3
+
+See below for detailed licences
+
+
+
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc.
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users. We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors. You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+ To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights. Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received. You must make sure that they, too, receive
+or can get the source code. And you must show them these terms so they
+know their rights.
+
+ Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+ For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+ Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so. This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software. The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable. Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products. If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+ Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary. To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ TERMS AND CONDITIONS
+
+ 0. Definitions.
+
+ "This License" refers to version 3 of the GNU General Public License.
+
+ "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+ "The Program" refers to any copyrightable work licensed under this
+License. Each licensee is addressed as "you". "Licensees" and
+"recipients" may be individuals or organizations.
+
+ To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy. The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+ A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+ To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+ To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+ An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License. If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+ 1. Source Code.
+
+ The "source code" for a work means the preferred form of the work
+for making modifications to it. "Object code" means any non-source
+form of a work.
+
+ A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+ The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form. A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+ The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities. However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work. For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+ The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+ The Corresponding Source for a work in source code form is that
+same work.
+
+ 2. Basic Permissions.
+
+ All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met. This License explicitly affirms your unlimited
+permission to run the unmodified Program. The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work. This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+ You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force. You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright. Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+ Conveying under any other circumstances is permitted solely under
+the conditions stated below. Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+ 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+ No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+ When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+ 4. Conveying Verbatim Copies.
+
+ You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+ You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+ 5. Conveying Modified Source Versions.
+
+ You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+ a) The work must carry prominent notices stating that you modified
+ it, and giving a relevant date.
+
+ b) The work must carry prominent notices stating that it is
+ released under this License and any conditions added under section
+ 7. This requirement modifies the requirement in section 4 to
+ "keep intact all notices".
+
+ c) You must license the entire work, as a whole, under this
+ License to anyone who comes into possession of a copy. This
+ License will therefore apply, along with any applicable section 7
+ additional terms, to the whole of the work, and all its parts,
+ regardless of how they are packaged. This License gives no
+ permission to license the work in any other way, but it does not
+ invalidate such permission if you have separately received it.
+
+ d) If the work has interactive user interfaces, each must display
+ Appropriate Legal Notices; however, if the Program has interactive
+ interfaces that do not display Appropriate Legal Notices, your
+ work need not make them do so.
+
+ A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit. Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+ 6. Conveying Non-Source Forms.
+
+ You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+ a) Convey the object code in, or embodied in, a physical product
+ (including a physical distribution medium), accompanied by the
+ Corresponding Source fixed on a durable physical medium
+ customarily used for software interchange.
+
+ b) Convey the object code in, or embodied in, a physical product
+ (including a physical distribution medium), accompanied by a
+ written offer, valid for at least three years and valid for as
+ long as you offer spare parts or customer support for that product
+ model, to give anyone who possesses the object code either (1) a
+ copy of the Corresponding Source for all the software in the
+ product that is covered by this License, on a durable physical
+ medium customarily used for software interchange, for a price no
+ more than your reasonable cost of physically performing this
+ conveying of source, or (2) access to copy the
+ Corresponding Source from a network server at no charge.
+
+ c) Convey individual copies of the object code with a copy of the
+ written offer to provide the Corresponding Source. This
+ alternative is allowed only occasionally and noncommercially, and
+ only if you received the object code with such an offer, in accord
+ with subsection 6b.
+
+ d) Convey the object code by offering access from a designated
+ place (gratis or for a charge), and offer equivalent access to the
+ Corresponding Source in the same way through the same place at no
+ further charge. You need not require recipients to copy the
+ Corresponding Source along with the object code. If the place to
+ copy the object code is a network server, the Corresponding Source
+ may be on a different server (operated by you or a third party)
+ that supports equivalent copying facilities, provided you maintain
+ clear directions next to the object code saying where to find the
+ Corresponding Source. Regardless of what server hosts the
+ Corresponding Source, you remain obligated to ensure that it is
+ available for as long as needed to satisfy these requirements.
+
+ e) Convey the object code using peer-to-peer transmission, provided
+ you inform other peers where the object code and Corresponding
+ Source of the work are being offered to the general public at no
+ charge under subsection 6d.
+
+ A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+ A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling. In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage. For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product. A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+ "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source. The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+ If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information. But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+ The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed. Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+ Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+ 7. Additional Terms.
+
+ "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law. If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+ When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it. (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.) You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+ Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+ a) Disclaiming warranty or limiting liability differently from the
+ terms of sections 15 and 16 of this License; or
+
+ b) Requiring preservation of specified reasonable legal notices or
+ author attributions in that material or in the Appropriate Legal
+ Notices displayed by works containing it; or
+
+ c) Prohibiting misrepresentation of the origin of that material, or
+ requiring that modified versions of such material be marked in
+ reasonable ways as different from the original version; or
+
+ d) Limiting the use for publicity purposes of names of licensors or
+ authors of the material; or
+
+ e) Declining to grant rights under trademark law for use of some
+ trade names, trademarks, or service marks; or
+
+ f) Requiring indemnification of licensors and authors of that
+ material by anyone who conveys the material (or modified versions of
+ it) with contractual assumptions of liability to the recipient, for
+ any liability that these contractual assumptions directly impose on
+ those licensors and authors.
+
+ All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10. If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term. If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+ If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+ Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+ 8. Termination.
+
+ You may not propagate or modify a covered work except as expressly
+provided under this License. Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+ However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+ Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+ Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+ 9. Acceptance Not Required for Having Copies.
+
+ You are not required to accept this License in order to receive or
+run a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+ 10. Automatic Licensing of Downstream Recipients.
+
+ Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License. You are not responsible
+for enforcing compliance by third parties with this License.
+
+ An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations. If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+ You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+ 11. Patents.
+
+ A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+ A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+ Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+ In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+ If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+ If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+ A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License. You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+ Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+ 12. No Surrender of Others' Freedom.
+
+ If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all. For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+ 13. Use with the GNU Affero General Public License.
+
+ Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+ 14. Revised Versions of this License.
+
+ The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ Polisseur
+ Copyright (C) 2019 Pierrick C.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see .
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ Polisseur Copyright (C) 2019 Pierrick C.
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+.
+
+#########################################################
+
+Affordable Rock Tumbler (http://www.thingiverse.com/thing:935252) by J_T_3_D is licensed under the Creative Commons - Attribution - Non-Commercial - Share Alike license.
+http://creativecommons.org/licenses/by-nc-sa/3.0/
+
+Creative Commons Legal Code
+
+Attribution-NonCommercial-ShareAlike 3.0 Unported
+
+ CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
+ LEGAL SERVICES. DISTRIBUTION OF THIS LICENSE DOES NOT CREATE AN
+ ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
+ INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
+ REGARDING THE INFORMATION PROVIDED, AND DISCLAIMS LIABILITY FOR
+ DAMAGES RESULTING FROM ITS USE.
+
+License
+
+THE WORK (AS DEFINED BELOW) IS PROVIDED UNDER THE TERMS OF THIS CREATIVE
+COMMONS PUBLIC LICENSE ("CCPL" OR "LICENSE"). THE WORK IS PROTECTED BY
+COPYRIGHT AND/OR OTHER APPLICABLE LAW. ANY USE OF THE WORK OTHER THAN AS
+AUTHORIZED UNDER THIS LICENSE OR COPYRIGHT LAW IS PROHIBITED.
+
+BY EXERCISING ANY RIGHTS TO THE WORK PROVIDED HERE, YOU ACCEPT AND AGREE
+TO BE BOUND BY THE TERMS OF THIS LICENSE. TO THE EXTENT THIS LICENSE MAY
+BE CONSIDERED TO BE A CONTRACT, THE LICENSOR GRANTS YOU THE RIGHTS
+CONTAINED HERE IN CONSIDERATION OF YOUR ACCEPTANCE OF SUCH TERMS AND
+CONDITIONS.
+
+1. Definitions
+
+ a. "Adaptation" means a work based upon the Work, or upon the Work and
+ other pre-existing works, such as a translation, adaptation,
+ derivative work, arrangement of music or other alterations of a
+ literary or artistic work, or phonogram or performance and includes
+ cinematographic adaptations or any other form in which the Work may be
+ recast, transformed, or adapted including in any form recognizably
+ derived from the original, except that a work that constitutes a
+ Collection will not be considered an Adaptation for the purpose of
+ this License. For the avoidance of doubt, where the Work is a musical
+ work, performance or phonogram, the synchronization of the Work in
+ timed-relation with a moving image ("synching") will be considered an
+ Adaptation for the purpose of this License.
+ b. "Collection" means a collection of literary or artistic works, such as
+ encyclopedias and anthologies, or performances, phonograms or
+ broadcasts, or other works or subject matter other than works listed
+ in Section 1(g) below, which, by reason of the selection and
+ arrangement of their contents, constitute intellectual creations, in
+ which the Work is included in its entirety in unmodified form along
+ with one or more other contributions, each constituting separate and
+ independent works in themselves, which together are assembled into a
+ collective whole. A work that constitutes a Collection will not be
+ considered an Adaptation (as defined above) for the purposes of this
+ License.
+ c. "Distribute" means to make available to the public the original and
+ copies of the Work or Adaptation, as appropriate, through sale or
+ other transfer of ownership.
+ d. "License Elements" means the following high-level license attributes
+ as selected by Licensor and indicated in the title of this License:
+ Attribution, Noncommercial, ShareAlike.
+ e. "Licensor" means the individual, individuals, entity or entities that
+ offer(s) the Work under the terms of this License.
+ f. "Original Author" means, in the case of a literary or artistic work,
+ the individual, individuals, entity or entities who created the Work
+ or if no individual or entity can be identified, the publisher; and in
+ addition (i) in the case of a performance the actors, singers,
+ musicians, dancers, and other persons who act, sing, deliver, declaim,
+ play in, interpret or otherwise perform literary or artistic works or
+ expressions of folklore; (ii) in the case of a phonogram the producer
+ being the person or legal entity who first fixes the sounds of a
+ performance or other sounds; and, (iii) in the case of broadcasts, the
+ organization that transmits the broadcast.
+ g. "Work" means the literary and/or artistic work offered under the terms
+ of this License including without limitation any production in the
+ literary, scientific and artistic domain, whatever may be the mode or
+ form of its expression including digital form, such as a book,
+ pamphlet and other writing; a lecture, address, sermon or other work
+ of the same nature; a dramatic or dramatico-musical work; a
+ choreographic work or entertainment in dumb show; a musical
+ composition with or without words; a cinematographic work to which are
+ assimilated works expressed by a process analogous to cinematography;
+ a work of drawing, painting, architecture, sculpture, engraving or
+ lithography; a photographic work to which are assimilated works
+ expressed by a process analogous to photography; a work of applied
+ art; an illustration, map, plan, sketch or three-dimensional work
+ relative to geography, topography, architecture or science; a
+ performance; a broadcast; a phonogram; a compilation of data to the
+ extent it is protected as a copyrightable work; or a work performed by
+ a variety or circus performer to the extent it is not otherwise
+ considered a literary or artistic work.
+ h. "You" means an individual or entity exercising rights under this
+ License who has not previously violated the terms of this License with
+ respect to the Work, or who has received express permission from the
+ Licensor to exercise rights under this License despite a previous
+ violation.
+ i. "Publicly Perform" means to perform public recitations of the Work and
+ to communicate to the public those public recitations, by any means or
+ process, including by wire or wireless means or public digital
+ performances; to make available to the public Works in such a way that
+ members of the public may access these Works from a place and at a
+ place individually chosen by them; to perform the Work to the public
+ by any means or process and the communication to the public of the
+ performances of the Work, including by public digital performance; to
+ broadcast and rebroadcast the Work by any means including signs,
+ sounds or images.
+ j. "Reproduce" means to make copies of the Work by any means including
+ without limitation by sound or visual recordings and the right of
+ fixation and reproducing fixations of the Work, including storage of a
+ protected performance or phonogram in digital form or other electronic
+ medium.
+
+2. Fair Dealing Rights. Nothing in this License is intended to reduce,
+limit, or restrict any uses free from copyright or rights arising from
+limitations or exceptions that are provided for in connection with the
+copyright protection under copyright law or other applicable laws.
+
+3. License Grant. Subject to the terms and conditions of this License,
+Licensor hereby grants You a worldwide, royalty-free, non-exclusive,
+perpetual (for the duration of the applicable copyright) license to
+exercise the rights in the Work as stated below:
+
+ a. to Reproduce the Work, to incorporate the Work into one or more
+ Collections, and to Reproduce the Work as incorporated in the
+ Collections;
+ b. to create and Reproduce Adaptations provided that any such Adaptation,
+ including any translation in any medium, takes reasonable steps to
+ clearly label, demarcate or otherwise identify that changes were made
+ to the original Work. For example, a translation could be marked "The
+ original work was translated from English to Spanish," or a
+ modification could indicate "The original work has been modified.";
+ c. to Distribute and Publicly Perform the Work including as incorporated
+ in Collections; and,
+ d. to Distribute and Publicly Perform Adaptations.
+
+The above rights may be exercised in all media and formats whether now
+known or hereafter devised. The above rights include the right to make
+such modifications as are technically necessary to exercise the rights in
+other media and formats. Subject to Section 8(f), all rights not expressly
+granted by Licensor are hereby reserved, including but not limited to the
+rights described in Section 4(e).
+
+4. Restrictions. The license granted in Section 3 above is expressly made
+subject to and limited by the following restrictions:
+
+ a. You may Distribute or Publicly Perform the Work only under the terms
+ of this License. You must include a copy of, or the Uniform Resource
+ Identifier (URI) for, this License with every copy of the Work You
+ Distribute or Publicly Perform. You may not offer or impose any terms
+ on the Work that restrict the terms of this License or the ability of
+ the recipient of the Work to exercise the rights granted to that
+ recipient under the terms of the License. You may not sublicense the
+ Work. You must keep intact all notices that refer to this License and
+ to the disclaimer of warranties with every copy of the Work You
+ Distribute or Publicly Perform. When You Distribute or Publicly
+ Perform the Work, You may not impose any effective technological
+ measures on the Work that restrict the ability of a recipient of the
+ Work from You to exercise the rights granted to that recipient under
+ the terms of the License. This Section 4(a) applies to the Work as
+ incorporated in a Collection, but this does not require the Collection
+ apart from the Work itself to be made subject to the terms of this
+ License. If You create a Collection, upon notice from any Licensor You
+ must, to the extent practicable, remove from the Collection any credit
+ as required by Section 4(d), as requested. If You create an
+ Adaptation, upon notice from any Licensor You must, to the extent
+ practicable, remove from the Adaptation any credit as required by
+ Section 4(d), as requested.
+ b. You may Distribute or Publicly Perform an Adaptation only under: (i)
+ the terms of this License; (ii) a later version of this License with
+ the same License Elements as this License; (iii) a Creative Commons
+ jurisdiction license (either this or a later license version) that
+ contains the same License Elements as this License (e.g.,
+ Attribution-NonCommercial-ShareAlike 3.0 US) ("Applicable License").
+ You must include a copy of, or the URI, for Applicable License with
+ every copy of each Adaptation You Distribute or Publicly Perform. You
+ may not offer or impose any terms on the Adaptation that restrict the
+ terms of the Applicable License or the ability of the recipient of the
+ Adaptation to exercise the rights granted to that recipient under the
+ terms of the Applicable License. You must keep intact all notices that
+ refer to the Applicable License and to the disclaimer of warranties
+ with every copy of the Work as included in the Adaptation You
+ Distribute or Publicly Perform. When You Distribute or Publicly
+ Perform the Adaptation, You may not impose any effective technological
+ measures on the Adaptation that restrict the ability of a recipient of
+ the Adaptation from You to exercise the rights granted to that
+ recipient under the terms of the Applicable License. This Section 4(b)
+ applies to the Adaptation as incorporated in a Collection, but this
+ does not require the Collection apart from the Adaptation itself to be
+ made subject to the terms of the Applicable License.
+ c. You may not exercise any of the rights granted to You in Section 3
+ above in any manner that is primarily intended for or directed toward
+ commercial advantage or private monetary compensation. The exchange of
+ the Work for other copyrighted works by means of digital file-sharing
+ or otherwise shall not be considered to be intended for or directed
+ toward commercial advantage or private monetary compensation, provided
+ there is no payment of any monetary compensation in con-nection with
+ the exchange of copyrighted works.
+ d. If You Distribute, or Publicly Perform the Work or any Adaptations or
+ Collections, You must, unless a request has been made pursuant to
+ Section 4(a), keep intact all copyright notices for the Work and
+ provide, reasonable to the medium or means You are utilizing: (i) the
+ name of the Original Author (or pseudonym, if applicable) if supplied,
+ and/or if the Original Author and/or Licensor designate another party
+ or parties (e.g., a sponsor institute, publishing entity, journal) for
+ attribution ("Attribution Parties") in Licensor's copyright notice,
+ terms of service or by other reasonable means, the name of such party
+ or parties; (ii) the title of the Work if supplied; (iii) to the
+ extent reasonably practicable, the URI, if any, that Licensor
+ specifies to be associated with the Work, unless such URI does not
+ refer to the copyright notice or licensing information for the Work;
+ and, (iv) consistent with Section 3(b), in the case of an Adaptation,
+ a credit identifying the use of the Work in the Adaptation (e.g.,
+ "French translation of the Work by Original Author," or "Screenplay
+ based on original Work by Original Author"). The credit required by
+ this Section 4(d) may be implemented in any reasonable manner;
+ provided, however, that in the case of a Adaptation or Collection, at
+ a minimum such credit will appear, if a credit for all contributing
+ authors of the Adaptation or Collection appears, then as part of these
+ credits and in a manner at least as prominent as the credits for the
+ other contributing authors. For the avoidance of doubt, You may only
+ use the credit required by this Section for the purpose of attribution
+ in the manner set out above and, by exercising Your rights under this
+ License, You may not implicitly or explicitly assert or imply any
+ connection with, sponsorship or endorsement by the Original Author,
+ Licensor and/or Attribution Parties, as appropriate, of You or Your
+ use of the Work, without the separate, express prior written
+ permission of the Original Author, Licensor and/or Attribution
+ Parties.
+ e. For the avoidance of doubt:
+
+ i. Non-waivable Compulsory License Schemes. In those jurisdictions in
+ which the right to collect royalties through any statutory or
+ compulsory licensing scheme cannot be waived, the Licensor
+ reserves the exclusive right to collect such royalties for any
+ exercise by You of the rights granted under this License;
+ ii. Waivable Compulsory License Schemes. In those jurisdictions in
+ which the right to collect royalties through any statutory or
+ compulsory licensing scheme can be waived, the Licensor reserves
+ the exclusive right to collect such royalties for any exercise by
+ You of the rights granted under this License if Your exercise of
+ such rights is for a purpose or use which is otherwise than
+ noncommercial as permitted under Section 4(c) and otherwise waives
+ the right to collect royalties through any statutory or compulsory
+ licensing scheme; and,
+ iii. Voluntary License Schemes. The Licensor reserves the right to
+ collect royalties, whether individually or, in the event that the
+ Licensor is a member of a collecting society that administers
+ voluntary licensing schemes, via that society, from any exercise
+ by You of the rights granted under this License that is for a
+ purpose or use which is otherwise than noncommercial as permitted
+ under Section 4(c).
+ f. Except as otherwise agreed in writing by the Licensor or as may be
+ otherwise permitted by applicable law, if You Reproduce, Distribute or
+ Publicly Perform the Work either by itself or as part of any
+ Adaptations or Collections, You must not distort, mutilate, modify or
+ take other derogatory action in relation to the Work which would be
+ prejudicial to the Original Author's honor or reputation. Licensor
+ agrees that in those jurisdictions (e.g. Japan), in which any exercise
+ of the right granted in Section 3(b) of this License (the right to
+ make Adaptations) would be deemed to be a distortion, mutilation,
+ modification or other derogatory action prejudicial to the Original
+ Author's honor and reputation, the Licensor will waive or not assert,
+ as appropriate, this Section, to the fullest extent permitted by the
+ applicable national law, to enable You to reasonably exercise Your
+ right under Section 3(b) of this License (right to make Adaptations)
+ but not otherwise.
+
+5. Representations, Warranties and Disclaimer
+
+UNLESS OTHERWISE MUTUALLY AGREED TO BY THE PARTIES IN WRITING AND TO THE
+FULLEST EXTENT PERMITTED BY APPLICABLE LAW, LICENSOR OFFERS THE WORK AS-IS
+AND MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND CONCERNING THE
+WORK, EXPRESS, IMPLIED, STATUTORY OR OTHERWISE, INCLUDING, WITHOUT
+LIMITATION, WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR
+PURPOSE, NONINFRINGEMENT, OR THE ABSENCE OF LATENT OR OTHER DEFECTS,
+ACCURACY, OR THE PRESENCE OF ABSENCE OF ERRORS, WHETHER OR NOT
+DISCOVERABLE. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF IMPLIED
+WARRANTIES, SO THIS EXCLUSION MAY NOT APPLY TO YOU.
+
+6. Limitation on Liability. EXCEPT TO THE EXTENT REQUIRED BY APPLICABLE
+LAW, IN NO EVENT WILL LICENSOR BE LIABLE TO YOU ON ANY LEGAL THEORY FOR
+ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES
+ARISING OUT OF THIS LICENSE OR THE USE OF THE WORK, EVEN IF LICENSOR HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+7. Termination
+
+ a. This License and the rights granted hereunder will terminate
+ automatically upon any breach by You of the terms of this License.
+ Individuals or entities who have received Adaptations or Collections
+ from You under this License, however, will not have their licenses
+ terminated provided such individuals or entities remain in full
+ compliance with those licenses. Sections 1, 2, 5, 6, 7, and 8 will
+ survive any termination of this License.
+ b. Subject to the above terms and conditions, the license granted here is
+ perpetual (for the duration of the applicable copyright in the Work).
+ Notwithstanding the above, Licensor reserves the right to release the
+ Work under different license terms or to stop distributing the Work at
+ any time; provided, however that any such election will not serve to
+ withdraw this License (or any other license that has been, or is
+ required to be, granted under the terms of this License), and this
+ License will continue in full force and effect unless terminated as
+ stated above.
+
+8. Miscellaneous
+
+ a. Each time You Distribute or Publicly Perform the Work or a Collection,
+ the Licensor offers to the recipient a license to the Work on the same
+ terms and conditions as the license granted to You under this License.
+ b. Each time You Distribute or Publicly Perform an Adaptation, Licensor
+ offers to the recipient a license to the original Work on the same
+ terms and conditions as the license granted to You under this License.
+ c. If any provision of this License is invalid or unenforceable under
+ applicable law, it shall not affect the validity or enforceability of
+ the remainder of the terms of this License, and without further action
+ by the parties to this agreement, such provision shall be reformed to
+ the minimum extent necessary to make such provision valid and
+ enforceable.
+ d. No term or provision of this License shall be deemed waived and no
+ breach consented to unless such waiver or consent shall be in writing
+ and signed by the party to be charged with such waiver or consent.
+ e. This License constitutes the entire agreement between the parties with
+ respect to the Work licensed here. There are no understandings,
+ agreements or representations with respect to the Work not specified
+ here. Licensor shall not be bound by any additional provisions that
+ may appear in any communication from You. This License may not be
+ modified without the mutual written agreement of the Licensor and You.
+ f. The rights granted under, and the subject matter referenced, in this
+ License were drafted utilizing the terminology of the Berne Convention
+ for the Protection of Literary and Artistic Works (as amended on
+ September 28, 1979), the Rome Convention of 1961, the WIPO Copyright
+ Treaty of 1996, the WIPO Performances and Phonograms Treaty of 1996
+ and the Universal Copyright Convention (as revised on July 24, 1971).
+ These rights and subject matter take effect in the relevant
+ jurisdiction in which the License terms are sought to be enforced
+ according to the corresponding provisions of the implementation of
+ those treaty provisions in the applicable national law. If the
+ standard suite of rights granted under applicable copyright law
+ includes additional rights not granted under this License, such
+ additional rights are deemed to be included in the License; this
+ License is not intended to restrict the license of any rights under
+ applicable law.
+
+
+Creative Commons Notice
+
+ Creative Commons is not a party to this License, and makes no warranty
+ whatsoever in connection with the Work. Creative Commons will not be
+ liable to You or any party on any legal theory for any damages
+ whatsoever, including without limitation any general, special,
+ incidental or consequential damages arising in connection to this
+ license. Notwithstanding the foregoing two (2) sentences, if Creative
+ Commons has expressly identified itself as the Licensor hereunder, it
+ shall have all rights and obligations of Licensor.
+
+ Except for the limited purpose of indicating to the public that the
+ Work is licensed under the CCPL, Creative Commons does not authorize
+ the use by either party of the trademark "Creative Commons" or any
+ related trademark or logo of Creative Commons without the prior
+ written consent of Creative Commons. Any permitted use will be in
+ compliance with Creative Commons' then-current trademark usage
+ guidelines, as may be published on its website or otherwise made
+ available upon request from time to time. For the avoidance of doubt,
+ this trademark restriction does not form part of this License.
+
+ Creative Commons may be contacted at https://creativecommons.org/.
+