About this 3D model

a more sturdy xcarriage for prusa mendel and Budaschnozzle with cooling duct for the upper part of the hot end and an another one for cooling the part if needed. I haven't got the small fan for the UQCT so i redraw an other way to use the standard 40mm fan I think the image is enough. i will post some pics as soon as possible. every thing printed nicely 0.3mm nozzle 0.5mm slic3r 0.9.9