KA Extruder

Kuro Alex (KA) Extruder, based on Alex Extruder.
I've modified from AA to KA, just for the sake of my nickname, instead of my name.
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v1.1 SCAD Uploaded (not print tested)
- Fixed some minor errors
- Code cleaning
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I made this extruder so I could adapt Alex Extruder to my needs. I use it with 3mm filament, a MK7 as the drive gear and a J-Head hotend.
As it was made on OpenSCAD, it's possible to easily modi