About this 3D model

This the same model as http://www.thingiverse.com/thing:3015 but its mirrored.You need this for the 2 head mendel x-carriage.All other parts are unmodified, take them from the original Wades extruder.You can find more info about it here: http://ifeelbeta.de/index.php/mendel-x-carriage-for-two-extruders