Ultimaker Syringe Extrusion System (quickmountable)

Features:

• It can be mounted & removed within seconds facilitating the:
  Ultimaker Generic HeadMount
  http://www.thingiverse.com/thing:20775
• No z buildspace is lost. If you crash the syringe into the build platform it will just slide upward until the z endstop is reached - no damage.

Restrictions:

• springiness of the dyneema thread (preextrusion needed)
• If you have a custom extruder you might be required to redesign the winder coupling part.
• The current design uses
  "Ultimaker BowdenFeeder Repair Kit"
  http://www.thingiverse.com/thing:10799
• The current design only works with the old style hobbed bolt which has a hexagonal head

Credits:

• This design was heavily inspired but not directly derived from
  http://www.thingiverse.com/thing:14421
  "ultimaker syringe extruder II" by joris
  It was redesigned from scratch to gain more parameterisability
  and instead of the plastic filament it uses a dyneema thread to pull the piston in.

Notes:

• A real bowden-cable from a bike is probably too stiff
  the piston wold start to retract before the wire would lie flat on the winder ([4b] see in the instructions)
  edit: after initial tests I'am not so sure about this this anymore
• The Gcode files are for Ultimakers with an old Bolt.