Flexion Extruder Adapter for Robo3D - E3D v6 Hotend

This is an upgrade to the Flexion Extruder for Robo3d

*** I have just updated this to version 3... the new version allows for use of the screws that were included to clamp down the E3D V6 holder instead of using long M3 screws through the entire object. ***

You must flash your Robo3D R1 with Arduino... you must also make 2 changes... they are below

.#define INVERT_Y_DIR true // Default is false... set to true
.#define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,800,723.38*0.115} // defaul