Comparto este tema que nos ha aportado el compañero Julio Carrillo Like most sane people, I’m a fan of sustainability. And like everyone that’s heard of 3d-printer, I think it’s awesome. With 3D printing being an additive process, it makes sense that it can further enable a sustainable future. Just because it makes sense to me though, doesn’t mean it’s anything more than speculation. Or is it? Markus Kayser built a 3D printer that’s powered by two of the most abundant resources available to us: the sun and sand.