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Welcome to

RepRap is a free desktop 3D printer capable of printing plastic objects. Since many parts of RepRap are made from plastic and RepRap can print those parts, RepRap is a self-replicating machine - one that anyone can build given time and materials. It also means that - if you've got a RepRap - you can print lots of useful stuff, and you can print another RepRap for a friend...

RepRap is about making self-replicating machines, and making them freely available for the benefit of everyone. We are using 3D printing to do this, but if you have other technologies that can copy themselves and that can be made freely available to all, then this is the place for you too. is a community project, which means you are welcome to edit most pages on this site, or better yet, create new pages of your own. Our community portal and New Development pages have more information on how to get involved. Use the links below and on the left to explore the site contents. You'll find some content translated into other languages.

RepRap was the first of the low-cost 3D printers, and the RepRap Project started the open-source 3D printer revolution. It is described in the video on the right.


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About | RepRappable Objects | Community | Help and support

Build a RepRap Machine
If you are new to RepRap, you should probably start with Prusa Mendel, or MendelMax.

Prusa Mendel

Full size Mendel RepRap Optimized for Lowest Cost Replication, and Ease of Sourcing

Prusa Buyer's Guide


Full size Mendel RepRap Optimized for Structural Rigidity and Ease of Assembly

Prusa Buyer's Guide

Legacy: Darwin
All 3 axes fdmd sml.jpg

The first RepRap

News Feed

For the full history see Core Team Blog.

See also the Rep Rap Blog Aggregator and the Google Reader RepRap Feed.