I had to rebuild my 3d printer it is a prusa I3 rework from ebay. I needed risers and a hopper printed for my filament extruder and what I had was just not cutting it. There were many broken parts as it was shipped rather haphazardly. It is rebuilt now and all axis are tight and moving.
I am looking at building a website to better host this information as there are alot of steps past getting the actual large production tools built, but I have tested all of this on a small scale and it works. If anyone has any idea as to the best place for free web hosting let me know.