https://blog.p2pfoundation.net/commons-based-peer-production-and-digital-fabrication-the-case-of-a-reprap-based-lego-built-3d-printing-milling-machine/2013/10/28 Researching, documenting and promoting peer to peer practices Sat, 25 Oct 2014 10:41:44 +0000 hourly 1 https://wordpress.org/?v=5.5.14