This is a lasercut chassis for the Rroofl reprap/repstrap design hosted at http://reprap.org/wiki/Rroofl . It uses 22 x M6 square nuts and 30m M6 bolts with washers to hold the frame together. These parts are currently awaiting first cut.Needs some 3D printed parts too, found on the Rroofl wiki at the moment. Hey, it's under development - parts come back on Wednesday. Hopefully it'll build something like a 300mmx280mmx300mm area - if I have it right.Note: MDF Is a common, but not generally very environmentally friendly material as of 2013. We encourage the search for locally-made, environmentally-friendly replacements.