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Welcome to

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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 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.

A family using one RepRap to print only 20 domestic products per year (about 0.02% of the products available) can expect to save between $300 and $2000:

"...the unavoidable conclusion from this study is that the RepRap is an economically attractive investment for the average US household already."

Source: B.T. Wittbrodt et al., Life-cycle economic analysis of distributed manufacturing with open-source 3-D printers, Mechatronics.

RepRap Community

Actually, we have two RepRap communities on this planet. This RepRap community puts emphasis on being a community, collecting and documenting knowledge, taking advantage of being Open Hardware, collaborating. We run forum and wiki and see commercial institutions as a tool.

Our goal is to make 3D printers more replicable, easier to understand, easier to build, less dependent on industry resources. Buying and assembling a premanufactured kit is nice. Understanding how a printer works, advancing its technology and making this available to everybody is something to be proud of. We're proud on what we do.

About RepRap | Forum | Wiki | Help and support

Other people considering them selfs to be the RepRap community is a group of entrepeneurs, their employees and some of their customers. Typically these entrepeneurs once started here and go now their distinct ways, mostly avoiding You can find them in their companies forums and/or in the Google+ 3D Printing Group.