Extruding problems - goes backward

Hello,

This is my hotend:
[i.ytimg.com]

Nozzle size is 0.5mm

Cura 3d settings:


I'm using RAMPS 1.4 and this is my extruder motor:
[g01.a.alicdn.com]

This is my configuration file:
[pastebin.com]

Quote
configuration.h
#define DEFAULT_AXIS_STEPS_PER_UNIT {107.5,107.5,175.0,86.4}
#define DEFAULT_MAX_FEEDRATE {100, 100, 20, 205}
#define DEFAULT_MAX_ACCELERATION {100,100,100,100}

AXIS STEPS PER UNIT for extruder is 86.4 and when I press extrude 1000mm (1000mm/min) in pronterface I got exactly 1 meter extruded filament.



The problem is that when I push filament (by hand) on heated hotend It gets extruded but when It comes to the printing when extruder is working very slowly filament doesn't come out from hotend. I dont use teflon PTFE tube (just regular hydraulic) one and fan to cool radiator. Any sugestions how to fix problem and improve printing process?

[youtu.be]
Please forgive audio/video quality and poor language skills.



PS Please note that this project is to make just few poor quality printings.

Edited 3 time(s). Last edit at 08/24/2016 03:36PM by JedzieMiZmordy.

You need to invert the extruder stepper direction if its moving backwards during a print. see below:

Invert stepper motor direction

You can invert the stepper motor direction if it was wired the wrong way. It doesn’t make a difference if you invert the stepper motor wiring or if you invert it in the code. *Remember to power off the printer before unplugging or replugging the stepper motors.


#define INVERT_X_DIR false

#define INVERT_Y_DIR true

#define INVERT_Z_DIR true

#define INVERT_E0_DIR true <------ this is the one you need to change from whatever you have it as to the opposite.

#define INVERT_E1_DIR true

#define INVERT_E2_DIR false

Or unplug the extruder stepper wire from ramps, and plug it backin with the wire colours going the opposite order