The following post arose out of a change in the licensing of an STL which was used in a remix from CC to a paid file. Rather than repeat it all in an intro, what follows is the full post I created in a relevant Failbook group:
Just a quick tip for new chums dipping their toes into the 3D modelling pool.
If you’re going to start off with a remix, only publish it (free or paid) once you have checked that it meets the licensing conditions for all source files used.
Generally, if the remix or new model that you wish to share publicly uses a part of any model which uses the Creative Commons (CC) license, remember that there are several types, with CC0 being the ONLY equivalent to Public Domain.
Before even uploading your remix, first ensure that
- the original file/s allows for derivatives
- if the original is a remix itself, check that the source for it also allows for derivatives
- if the model allows sharing although this is usually bundled up with No Derivatives
- provide a link to the original model, or if not known (e.g. lost in the Thingiverse purge), track down the original creator and link to their profile
- if considering asking for coin for your model, the easiest thing is to make the model from scratch rather than remix.
Most of the free models with CC licensing in the wild are also marked non-commercial.
That said, don’t be a jerk and rip-off a model just because the creator hasn’t realised that the license can be set to non-commercial.
Always ask permission and if the answer is no, then the only option is keep it to yourself, or make your own from scratch. - The last bullet point also applies to selling prints: if the models license stipulates Non-commercial then this applies to prints as well as the STLs.
Even if it doesn’t state non-commercial, then the polite thing to do is to approach the creator and ask permission, and offer a percentage of profit as win-win. This keeps the creators happy and shows that not all people who sell prints are knobs without a conscience… and we’re likely to still have public access to their STLs instead of having them disappear behind paywalls and other convoluted systems.
On a side note, this is why I’m personally not a fan of people “secret squirrel” sharing files via PM or personal cloud drives because rarely are any of the supplementary files kept except for the STL, losing both the reference to the creator and the license terms in the process. Release a remix of one of these and there’s potential to lose any credibility as a modeller once someone identifies the source.
Also remember that when remixing, you’re a creator yourself and it’s well worth taking the time to understand how the Creative Common licensing protects your own works Scroll about half way down the page of the following link and all types of CC licensing are explained succinctly and unambiguously.
https://creativecommons.org/licenses/