Comment by TD-Linux

I do not understand the connection between the patent concerns in the article and open-source 3D printing. In particular, the patent issues seem to be the case for all non-Chinese 3D printer companies, whether open source or not. I am not sure how sharing your designs makes this worse (I suppose with the original drawings it's a bit easier to write a patent in bad faith - but certainly not necessary). Something like a defensive patent grant might make a lot of sense (see Opus, AV1 etc) but that's also independent of whether the implementation is open source or not.