Hi, I'm building a dual extruder 3d printer using the Marlin-RC firmware. I have got everything working so far until i face this one main problem. My extruder 1 will not extrude/retract at all, and my extruder 2 will move its x-axis to the center after extruding, and will move back when retract is pressed. This problem has not occured before to my other 3d printers with single extruder. Please help. Both temperature sensors and heaters are working properly. Configuration extruder count has set to 2.
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