Just completed this printer, loosely based on a Prism/Mendel Max but constructed from Open Beam extrusion.
Files here: [www.thingiverse.com]
Blog here: [www.nzec.co.nz]
I am partly through a build of this variation by Wired and is a well thought out design. It is assembling very smoothly with the basic frame complete and moving on to the motors and axiss