MM-CNCs moveable bowden extruder V2

With this extruder you can keep your bowden tube very short. Combined with the orientation of the filament spool, the preshaped/precurved filament from the spool can stay in its curved shape, because it is the major shape of the whole bowden tube.
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After real good experiences with my moveable bowden extruder, I made the next release of this awesome piece of mechanics. I never had such a increase in quality. I'm now able to extrude & retract ABS @ 100mm/s. This reduced all the blobs & st