Editing and selling 3D models licensed under CC BY-NC and CC BY-NC-ND
<p>I love 3D printing and I am thinking of selling some of my prints but most of my print models are downloaded from a website. 3D models came with <a href="https://creativecommons.org/licenses/by-nc/3.0/" rel="nofollow noreferrer">Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)</a> and some are <a href="https://creativecommons.org/licenses/by-nc-nd/3.0/" rel="nofollow noreferrer">Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0) </a>. </p>

<p>If I edited for example this 3D model of a car, let say I put a new headlights or put a new spoiler and skirts, which of these two CC license I violate? And if I edited a model and sell them, did I violate these rules? </p>

<p><a href="https://i.stack.imgur.com/eYaDv.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/eYaDvs.jpg" alt="Car model"></a></p>

<h2>Both of them</h2>

<p>The physical manifestation of a 3D print model is a derivative work and so you must follow the licence. The licences are "non-commercial" - selling stuff as a business is squarely commercial.</p>

creative-commons commerce