Prusa i3 "Tweety" Parametric Compact Extruder

_[2014-07-02] Added a configurable fan duct (preset for a long nozzle).
[2013-09-13] Fixed supports, bottom-width, outlet hole alignment, 25mm motor bolts.
[2013-09-11] Added an optional nozzle stabilizer, fixed the body groove
[2013-08-24] Wider idler hinge, better supports, longer endstop bumper._
Project Home
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https://github.com/thinkyhead/tweety-extruder
About Tweety Extruder
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Gain a little extra height on your Prusa i3 with this simple direct drive extruder. Requires an