Thanks for your experience ZorAxe. I think I may just go with the long style 17s. Even though I am a little worried. Remember that bed is going to be 4 square feet of aluminum mounted on some type of rail, it will be a heavy sumbich. I have in my mind how I want the printer to look. But I have to now start designing it in UGNX6. Im probably going to have the parts machined out of aluminum.

How do you guys build your z axis rail adjustability into the printer? Screws like the reprap?