ramps 1.4 pronterface extruder not working

ok so after a long while I finished my sells mendel.
i have ramps 1.4 running pronterface
every axis works x y and z but the extruder motor doesnt turn
the thermistor and heater work fine and the test cube code works fine except the extruder

i have swapped out the stepper driver
doesnt seem to be the issue.
when i click on extrude 5mm in pronterface it thinks its extruding but isnt
is there any way to test the board etc?
I am so close to having this thing print. everything is perfect but the extruder.
Any suggestions

thanks bryan

i forgot to mention I am using sprinter firmware and a arduino mega 2560

I'm having exactly the same issue.XYZ are great, nozzle heats fine, thermistor works fine, extruder motor turns fine when I connect to the y axis, but I can't get it to react when I ask it to extrude. I'm so close it's killing me!

Have you tried changing the pololu driver from other socket that you know that works (like the x axis), it may be damaged and does not send info to the motors.

I have a similar issue, the extruder works when I run it manually ie click extrude 5mm but when I tell it to print it doesnt turn

Did you get your problem fixed?

herishi Wrote:
-------------------------------------------------------
> I have a similar issue, the extruder works when I
> run it manually ie click extrude 5mm but when I
> tell it to print it doesnt turn
>
> Did you get your problem fixed?


It's actually a different issue, his extruder is NOT extruding when he clicks the extrude button in pronterface.

For your problem herishi, are you using skeinforge ? If so you might want to activate "Dimension".
Anyway if you can't fix your problem you should open a new thread.

---

Most of my technical comments should be correct, but is THIS one ?
Anyway, as a rule of thumb, always double check what people write.

Marlin wont move extruder unless you heat the print head up.

Marlin moving the extruder or not depends on how you have it set up.

I have some what similar issue on pronterface with sprinter firmware and RAMPS 1.4.
Extruder motor does not turn. The motor was tested with another axis. stepper driver switched and works fine.
I've ruled out motor and stepper on the extruder.

I've also loaded merlin firmware but when I hit the extruder button on pronterface, all motor(x,y,z) moves very slowly excluding extruder motor.
Regardless, both merlin and sprinter firmware don't work on the extruder motor.

Any ideas???

Switch to sprinter firmware and test your setup. You may lack the lcd and sd card support but it will run your motor for testing purposes.

Hello, i have the same problem. Extruder motor wont move at all. I have tried so many combinations, and nothing.

Could you help me please with this problem ?

Am want to use a 3D printer with 2 extruders.

Am am using Ramps 1.4 with Nema 17 motors.

Thank you very much.

i had the same problem:
my e0 extruder motor didnt want to move. when i clicked on extrude the motor got power (i could hear and feel that because it blocked and i couldnt turn by hand).

then i changed the polulus and i tried the e0 slot with another axis, it just didnt move at all.

so i suspected that the slot of the e0 extruder polulu driver on the board is broke. i changed the pin assignment with e1 and connected the motor to the e1 extruder and its working fine!


Assuming you are using ramps 33 in you configuration.h file
you open up pin.h in a text editor and scroll down until you find

/****************************************************************************************
* Arduino Mega pin assignment
*
****************************************************************************************/
#if MOTHERBOARD == 3 || MOTHERBOARD == 33 || MOTHERBOARD == 34 || MOTHERBOARD == 35 || MOTHERBOARD == 77 || MOTHERBOARD == 67 || MOTHERBOARD == 68
#define KNOWN_BOARD 1

//////////////////FIX THIS//////////////
#ifndef __AVR_ATmega1280__
#ifndef __AVR_ATmega2560__
#error Oops! Make sure you have 'Arduino Mega' selected from the 'Tools -> Boards' menu.
#endif
#endif


// uncomment one of the following lines for RAMPS v1.3 or v1.0, comment both for v1.2 or 1.1
// #define RAMPS_V_1_3
// #define RAMPS_V_1_0


#if MOTHERBOARD == 33 || MOTHERBOARD == 34 || MOTHERBOARD == 35 || MOTHERBOARD == 77 || MOTHERBOARD == 67 || MOTHERBOARD == 68

#define LARGE_FLASH true

#if MOTHERBOARD == 77
#define X_STEP_PIN 54
#define X_DIR_PIN 55
#define X_ENABLE_PIN 38
#define X_MIN_PIN 3
#define X_MAX_PIN -1 //2 //Max endstops default to disabled "-1", set to commented value to enable.

#define Y_STEP_PIN 60
#define Y_DIR_PIN 61
#define Y_ENABLE_PIN 56
#define Y_MIN_PIN 14
#define Y_MAX_PIN -1 //15

#define Z_STEP_PIN 46
#define Z_DIR_PIN 48
#define Z_ENABLE_PIN 63
#define Z_MIN_PIN 18
#define Z_MAX_PIN -1

#define Y2_STEP_PIN 36
#define Y2_DIR_PIN 34
#define Y2_ENABLE_PIN 30

#define Z2_STEP_PIN 36
#define Z2_DIR_PIN 34
#define Z2_ENABLE_PIN 30

#define E0_STEP_PIN 26
#define E0_DIR_PIN 28
#define E0_ENABLE_PIN 24

#define E1_STEP_PIN 36
#define E1_DIR_PIN 34
#define E1_ENABLE_PIN 30

#define SDPOWER -1
#define SDSS 25//53
#define LED_PIN 13

#define BEEPER 33

#else

#define X_STEP_PIN 54
#define X_DIR_PIN 55
#define X_ENABLE_PIN 38
#define X_MIN_PIN 3
#define X_MAX_PIN 2

#define Y_STEP_PIN 60
#define Y_DIR_PIN 61
#define Y_ENABLE_PIN 56
#define Y_MIN_PIN 14
#define Y_MAX_PIN 15

#define Z_STEP_PIN 46
#define Z_DIR_PIN 48
#define Z_ENABLE_PIN 62
#define Z_MIN_PIN 18
#define Z_MAX_PIN 19

#define Y2_STEP_PIN 36
#define Y2_DIR_PIN 34
#define Y2_ENABLE_PIN 30

#define Z2_STEP_PIN 36
#define Z2_DIR_PIN 34
#define Z2_ENABLE_PIN 30

#define E0_STEP_PIN 26
#define E0_DIR_PIN 28
#define E0_ENABLE_PIN 24

#define E1_STEP_PIN 36
#define E1_DIR_PIN 34
#define E1_ENABLE_PIN 30



change the E0 and E1 pins in these two spots (right down here and a little above) and it should work for you!


right now im having the problem that the thermistor of my heatbed gives me a wrong temperature (80 degree C in my room instead of 20 haha).
does anyone have the same problem?

Hi i have same trouble with extruder e0 but i need to have e0 & e1 working. Can anyone help?
Is there something on arduino fuc#ed?

Edited 1 time(s). Last edit at 05/18/2014 04:00AM by wensz.

Hi,
Any progress on it? I have the same problem with Repetier firmware.

SOLVED.
thank you man.this is a pretty good way to get around clicking extruder.or buying new ramps.i was going to buy a new ramps 1.4. still going to buy.
but using Ext_1 instead of Ext_0 solved my clicking problem.i was really frustrated.thank you so much.