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Welcome to

NEWS: Come to the Inside 3D Printing event in New York City! The event runs from April 22-23 2013. We have arranged for reprappers (that's you!) to get a special 15% discount on admission - quote the code RRP15.

RepRap is humanity's first general-purpose self-replicating manufacturing machine.

RepRap takes the form of a free desktop 3D printer capable of printing plastic objects. Since many parts of RepRap are made from plastic and RepRap prints those parts, RepRap self-replicates by making a kit of itself - a kit that anyone can assemble 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 has become the most widely-used 3D printer among the global members of the Maker Community:


Source: Moilanen, J. & Vadén, T.: Manufacturing in motion: first survey on the 3D printing community, Statistical Studies of Peer Production. Available here.

About | RepRappable Objects | Community | Help and support

Build a RepRap Machine
If you are new to RepRap, you should probably start with Prusa Mendel (if you want a big build volume) or Huxley (if you want a small machine).

Prusa Mendel
Prusa Mendel

Full-sized RepRap, Focused On Low Cost and Ease of Sourcing


Full-sized RepRap Focused on Structural Rigidity and Ease of Assembly


Smaller RepRap designed to reduce part count and minimize complexity of build

Original Mendel
Original Mendel

The first Mendel design: fully functional, but more complicated than later variants

RepRapPro Huxley
RepRapPro Mendel

News Feed

Legacy RepRap 3D Printers. These designs have been replaced by more recent ones (so build them at your own risk).
If you are new to RepRap, you should probably start with Prusa Mendel (if you want a big build volume) or Huxley (if you want a small machine).

Original Huxley
original Huxley

The Original Mini RepRap


The first RepRap