Extruder flow direction is wrong

[petercox]

Help

I have Geeetech prusa i3 pro c.
All working fine and latest Marlin firmware uploaded.
The extruders are working in wrong direction ie retracting instead of extruding - How can I change this

[Mark]

check out this link:
http://www.geeetech.com/forum/viewtopic ... 17&t=17037

[petercox]

Mark

thanks for help

Problem is that extruder drive is working in wrong direction rather than xyz stepper motors

I have managed to solve it by modifying code in Marlin configuration file configuration.h

#define INVERT_E0_DIR false // change from false to true to change extruder direction
#define INVERT_E1_DIR true // change from true to false to change extruder direction

I swapped attributes for both E0 and E1 from true to false or vice versa

Works fine now