Making the Ponoko RepRap Upper Framework
When assembling the framework, remember that it is what makes the RepRap move in straight lines. The straighter and squarer you make it, the better your RepRap will be. Check all rotating threaded rods and plain rods that are used as slides to make sure they are dead straight. If not straight enough, clout them into line with a block of firewood or rubber mallet - nothing that will damage the surface.
Ran out of words. Off to library to get more.
Now you can fit the RepRap's bed.
-- Main.VikOlliver - 14 Nov 2008