Printer that was never developed to maturity, but has very interesting and unique design with SCARA arm and circular build platform. It does not need any bearings or non-printable linear systems.I hope someone will finish this project some day.
https://github.com/sjkelly/RepRap-Lewis
http://reprap.org/wiki/Lewis
https://github.com/sjkelly/RepRap-Lewis
http://reprap.org/wiki/Lewis