So as someone who's been doing this for a while, both modeling and selling, I've found there's some pretty well defined lines that the community accepts. I've issued takedowns on Etsy and other 3rd party sites for people selling makes my models, and had a 100% success rate. I release my models under a share-alike non-commercial license as my way of giving back to a community I've gotten so much out of, not to make other people money I could have made myself.
I've been contacted lots of times by people saying:
'Can I charge someone to make your model for them' = always yes
'Can I print some of your models for sale at a booth' = usually yes, depends on who and the volume
'Can I sell prints of your models on Etsy, ebay, etc' = Always no, if I wanted to charge for them I would do it myself, I could probably make a decent amount on Cults just selling the models, but that goes against the spirit of why I do this
So first, look at the licensing:
- If it says 'non-commercial' then contact the creator and don't do anything until you hear back, some are ok, some aren't, some may want a cut or a flat fee
- If it says 'for commercial use', 'for any use', or has no license attached, it's still polite to contact the creator if you're planning on selling in any kind of volume or online, if they don't get back to you you're defensibly in the clear. They can still issue a take down, but at least you can show you made the effort and that the licensing doesn't prohibit it so you can defend against it.
It takes 100s of hours to model and test a model like this:
Detailed Build Videos and Instructionshttps://youtu.be/mkcb6rsvBS8Code, parts list here:https://github.com/Props3D/dredd-lawgiverBuild and development thread:https://www.therpf.com/forums/threads/dredd-2012-electronics-3d-model-and-build.343348/Models are finalized so print away but code is...
www.thingiverse.com
It took multiple prints and iterations, lots of changed parts, versions, etc. to get this right. Because was a faithful reproduction of a fairly modern prop I still felt the obligation to inform the original prop designer that I was doing even a small run on the RPF and got his approval before doing so. There was no legal requirement to do so since I modeled from scratch, but remember that this is a small community and being polite goes a long way. Creators sink a lot of time into projects expecting nothing more than to make people happy, just like the modding community in games or other equiv. There's a balance which needs to be respected or people will pull their models, stop making new ones, and we'll all be worse off for it.