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by Joakal 5441 days ago
RepRap is a free desktop 3D printer capable of printing plastic objects: http://reprap.org/wiki/Main_Page

The RepRap Project is an initiative aimed at creating a largely self-replicating machine which can be used for rapid prototyping and manufacturing: http://www.reddit.com/r/reprap

Both are different projects, but relate to 3D printing.