I have my reprap parts on order and will be assembling it early 2012. I make biodiesel in my garage and I would like to automate the process more by using different plumbing that I cannot get in my local market. Namely things like venturis, tank flanges, and odd-sized pipe couplers which would be nice if I could print them. No biggie if I can't but it would save me a lot of time and torment. My qby JBernal - Let's design something! (I've got an idea ...)