Extruder Stepper Not Spinning

Here is my problem,

All electronics and cables are connected but the only issue i am having is my stepper extruder doesn't spin.
The group of 4 led's on the extruder board blink when I press extruded in the RepRap Software like the stepper axis boards.
I know the stepper motor works fine and I have tried two different steppers motors with no luck.
What suggestions do you have to get my extruder stepper spinning. I have verified that the proper coils are hooked up to the correct pins.

Also note,
I did not make any modifications to the MakerBot extruder board like the wiki suggests, meaning it is connected to the motherboard via ethernet cable and a computer power supply is directly plugged into the motherboard.
I also have the D9 and D10 pins connected to the respective connections on the main board.

Are there any modifications to the software that need to be made to use a stepper or is there anything else that I am missing?

Jon

Hi, I think we had a same problem in our exturder stepper motor... my post :[forums.reprap.org]
For your case have you tried load a gcode to run a machine ? is't also blink 4 LED ?

tv7957ht Wrote:
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> Hi, I think we had a same problem in our exturder
> stepper motor... my post
> :[forums.reprap.org]
> For your case have you tried load a gcode to run a
> machine ? is't also blink 4 LED ?


I'll try running G-Code today, But to get the led's to light up, make sure you have that 2 wire cable hooked up to D9 and D10.
I was having issues with the led's not lighting up before i added that cable.
Also are you using the makerbot boards with or without the Reprap wiki modifications?

Jon

The Makerbot Boards work without Modifikation... my do ...

Do you put the blue Poti clockwise ? It ist to high the Ampere of the Stepper.

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Mfg
Wolfgang

Aller Anfang war schwer - Wolfstrap

Reprap-fab.org

Erfahrungen kann man leider schlecht weiter geben, die muss man selber machen.

Hi, I did a modifications as a reprap design, I also connected a (SDA to D10) & (SCL to D9) already, But, I have no idea why the extruder stepper motor dont spinning when running G-Code in reprap-host software, but its can spinning in reprap-host console "extruder" button.....
I'm thinking about is't my wrong G-code cause this problem. ?

Edited 1 time(s). Last edit at 06/28/2010 02:14PM by tv7957ht.

Stoffel15 Wrote:
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> The Makerbot Boards work without Modifikation...
> my do ...
>
> Do you put the blue Poti clockwise ? It ist to
> high the Ampere of the Stepper.


I am having the same issue with my extruder board and stepper. I have tried the pot all the way to the left and all the way to the right and half way, same issue. I also did not modify my makerbot boards and just used an ethernet cable to connect it to the mainboard and ran the 2 wire D9 and D10 cable

i hit extrude on the reprap program and nothing happens, i see the group of 4 leds "spin" just like the stepper boards but the stepper does not move, identical to the issue jonnyboy is having

my heater works fine and the PID control keeps the temp fairly accurate

to make sure the extruder stepper wasn't broken i connected my x-axis stepper to the extruder board and tested it, no luck... and i know those steppers work flawless

anyone have any other ideas? maybe something is broken on the board, any recommendations on components to check?

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My Reprap Project "Work In Progress" Walkthrough: [echovoice.com]

tv7957ht Wrote:
-------------------------------------------------------
> Hi, I did a modifications as a reprap design, I
> also connected a (SDA to D10) & (SCL to D9)
> already, But, I have no idea why the extruder
> stepper motor dont spinning when running G-Code in
> reprap-host software, but its can spinning in
> reprap-host console "extruder" button.....
> I'm thinking about is't my wrong G-code cause this
> problem. ?


that does sound like a gcode problem, i wish mine was getting that far

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My Reprap Project "Work In Progress" Walkthrough: [echovoice.com]

To make sure the electrical stuff is working, one can test drive steppers with a small firmware designed for that: [reprap.org] .

Just upload the firmware, turn the power on and steppers should start moving. Don't forget to adjust the pin numbers in the first two lines of the given test code for each stepper.

If this test drive works, and other things don't, software is the culprit.

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Generation 7 Electronics	Teacup Firmware	RepRap DIY

Does the motor lock or vibrate or do nothing at all? If it tries to move then the current might be too low, speed too high or the phase wiring incorrect. If it does nothing at all but the LEDs are working then it implies the drive chips are fried.

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[www.hydraraptor.blogspot.com]

Traumflug Wrote:
-------------------------------------------------------
> To make sure the electrical stuff is working, one
> can test drive steppers with a small firmware
> designed for that:
> [reprap.org]
> ve_it_a_test_drive .
>
> Just upload the firmware, turn the power on and
> steppers should start moving. Don't forget to
> adjust the pin numbers in the first two lines of
> the given test code for each stepper.
>
> If this test drive works, and other things don't,
> software is the culprit.

stepper works fine with an easydriver board and arduino


nophead Wrote:
-------------------------------------------------------
> Does the motor lock or vibrate or do nothing at
> all? If it tries to move then the current might be
> too low, speed too high or the phase wiring
> incorrect. If it does nothing at all but the LEDs
> are working then it implies the drive chips are
> fried.

my feeling exactly at this point, i ordered another extruder board from makerbot yesterday, i get no readings on my multimeter whatsoever on the stepper pins coming from the board... i don't see any physical damage with the board and it has never worked right, probably a DOA board... ugh waste of $50

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My Reprap Project "Work In Progress" Walkthrough: [echovoice.com]

> never worked right, probably a DOA board... ugh
> waste of $50

You should contact makerbot. they might (and should) refund you if the board was shipped to you defective (i.e. DOA).

defective board, new board worked great, i should have my reprap done this week, thanks for the help everyone!!!