I finally got the printer put all together to the point i could print the rumba board mount. there is a definite increase in quality going from the hexagon to the e3d hot end. Now my i3v was a pre 16 model so i did have to buy 4 extra t slot nuts and the 60cm ribbon cables. and make sure to print the appropriate parts that you will need before tearing your current printer down. i didn't and then i thought about it and just said screw it and bought them.