thanks for the tip. i stopped printing with abs because of the warping. what temp do you have your bed and nozzle at with abs? i also have this setup http://www.thingiverse.com/thing:335613 im still using the fans it came with tho. i did get the smaller fan just been lazy to take it apart and wire it up. might do it today since my filament is not feeding, getting stuck and the bolt is just eating at the filament.