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Hi All,

I could use some help debugging extruding issues. My current issue is that, although extruding appears to work correctly when executed manually, when I print something the extruder doesn’t do anything.
I’m using Repetier-host version 1.05 and running firmware .91.

I’ve had prior extruding issues before, specifically it appeared to work in reverse, to be pulling when it should be pushing, so to print I had set the extruder to inverse=true somewhere in the firmware. This latest version of Repetier-host 1.05 has extruder control now under the manual control tab. With it I was able to confirm the extruder works in reverse, and through forum search found the correct wiring for the extruder and corrected it (reversed the wires). I then updated EXT0_INVERSE = false and EXT0_ENABLE_ON = false in the firmware, saved to file, uploaded and updated the EEPROM.
So now my settings in the configuration.h file are:
#define EXT0_STEPS_PER_MM 92.65 // EZStruder
#define EXT0_TEMPSENSOR_TYPE 97
#define EXT0_TEMPSENSOR_PIN TEMP_0_PIN
#define EXT0_HEATER_PIN HEATER_0_PIN
#define EXT0_STEP_PIN E0_STEP_PIN
#define EXT0_DIR_PIN E0_DIR_PIN
// set to false/true for normal / inverse direction
#define EXT0_INVERSE false
#define EXT0_ENABLE_PIN E0_ENABLE_PIN
// For Inverting Stepper Enable Pins (Active Low) use 0, Non Inverting (Active High) use 1
#define EXT0_ENABLE_ON false
#define EXT0_MAX_FEEDRATE 100
#define EXT0_MAX_START_FEEDRATE 45
#define EXT0_MAX_ACCELERATION 6500
#define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
#define MOTOR_CURRENT {195,195,195,195,0} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)

Again, my problem is that the extruder doesn’t push or pull the material during prints, but pushes and pulls the material correctly under the manual control. Any help debugging my extruding issue would be greatly appreciated. Thanks!

Is the extruder moving at all during a print? If not, I reckon that the slicer isn't configured to use the correct extruder. Can you tell us what your slicer is, what you're trying to print, and post a pastebin of the g-code for whatever you are printing where the extruder isn't working?

Well, your system seems to be working. What i recommend is this:

Output a manual command from repetier or whatever, check the E component in the Gcode.
Then check your generated Gcode and compare.

Most probably there is a difference between the two. If not there is something very fishy going on.

There is a setting in repetier host that is called something like DryRun, if it's set, the extruder doesn't run during the print.

The slicer is slic3r. I verified in the slicer configuration setting under the print settings tab, that all configurations are set to extruder 1, or the first extruder. I’m trying to print a small tree frog I’ve printed before. I’ve now attempted to print a cube and a bitcoin, other things I have printed. The extruder still doesn’t work. I couldn't figure out how to post a pastebin, so I've attached the g-code file for the print job. I do not know or understand what the e-component of g-code is, but damn it, I just accidently melted my hot end in two by manually enabling it to test extruding, while the hot end was to the bed, with temp default set to 190. I'm going to have to change out my hot end before we can attempt to debug further. Stay tuned.

Extruder 0 is for the primary extruder, Exruder 1 is for the second extruder.