Hi i started the Plastobot, a project to have most of the printers parts printed. while this ofcourse is the idea behind all of the repraps i personally think there are too many non-printed parts in most of the printers. especially smooth and threaded rods are a huge part that must be minimized. I already have a wiki page up Plastobot wiki. i am gratefull for every hint on similar projekts (someby timbernasley - Developers
I might have an idea about the frame printing time. if the rods weren't solid but rather pipes with support from the inside(like that #) it would only need a little amount of material compared to solid and thus take less time to print. could be too light though maybe if you haven't thought of it yourself yet this was of some use. if not well... just an ideaby timbernasley - Kartik M. Gada Humanitarian Innovation Prize