extruder for µdelta / micro delta

printed extruder can replace the original of µdelta
it's put to same place
It's used with original tools like bearing ( 604zz ), spring and the drive gear.
you must also insert a little part of ptfe 2/4mm in the bottom part.
i was inspired by http://www.thingiverse.com/thing:615465 to made this.
enjoy if you like.