Extruder for a cheap chinese I3 Clone

This is my Extruder Design for the Cheap Chinese I3 clone i bought from ebay. One of the things i didn't like on it, was the Extruder, where the counterbearing was fixed, so you couldn't adjust the preasure from the bearing to the transportationgear which often caused hopping/skipping on the filament. Since there wasn't enough space for the Extruder Designs i found here on thingiverse or i havent had a suitable spring laying around i simply designed this extruder. It uses the bearing from the st