Extruder not working

[djbuzz]

Apologies all, I did not explain myself very clearly below is what I have tried:

Everything plugged into where it should be and heated up (tested both extruder ports) – extruder motor never moves

Nicked a cable from the Y Axis and plugged this into the extruder, this made the extruder motor work (the stepper motor is fine) I did not unplug the cable from the Y Axis port on the board, so I moved the Y axis on the LCD to test if the stepper motor was faulty.

I just tested moving the extruder cable from both ends and using this cable for the X axis, this works, I assume this must be the board or stepper motor driver?

[William]

It is more likely that you have a bad extruder motor driver(A4988),you can swap the driver with the one of X axis or Y axis to see if the extruder motor works.Cuz you mentioned you've tested the extruder cable and it's OK.

[alexvolk]

Hello, i was told the referral number :109-1579310-7045003
for some reason my printer is not extruding, previously i had a problem in which the z axis did not move but that was fixed thanks to your helpful instructions. But i still have a problem with my extruder, it seems to be jammed and it wont let anything out when i start a print and the maximum i will get is the a small bubble of plastic on the tip. I have the MeCreator2. what size drill should i use to clean out the jam? The forum said to use a drill but it did not specify a size, also concerning that the nozzle is .4 mm in size i cant think of any drill that would fit in it.
thank you in advance for the help!

[alexvolk]

Hello, my name is Alex.
I was told the referral number :109-1579310-7045003
for some reason my printer is not extruding, previously i had a problem in which the z axis did not move but that was fixed thanks to your helpful instructions. But i still have a problem with my extruder, it seems to be jammed and it wont let anything out when i start a print and the maximum i will get is the a small bubble of plastic on the tip. I have the MeCreator2. what size drill should i use to clean out the jam? The forum said to use a drill but it did not specify a size, also concerning that the nozzle is .4 mm in size i cant think of any drill that would fit in it.
Thank you in advance for the help!

[William]

Hello, my name is Alex.
I was told the referral number :109-1579310-7045003
for some reason my printer is not extruding, previously i had a problem in which the z axis did not move but that was fixed thanks to your helpful instructions. But i still have a problem with my extruder, it seems to be jammed and it wont let anything out when i start a print and the maximum i will get is the a small bubble of plastic on the tip. I have the MeCreator2. what size drill should i use to clean out the jam? The forum said to use a drill but it did not specify a size, also concerning that the nozzle is .4 mm in size i cant think of any drill that would fit in it.
Thank you in advance for the help!

Hi,Alex
Look the following pic,this guy use a tool we called Ejector Pin to clear the clogging,i guess it was included in your package when you received it before,and you can use it to clean the jam.

QQ截图20160824164847.jpg (67.49 KiB) Viewed 17119 times

IMG_20160702_175815.jpg (135.53 KiB) Viewed 17119 times

[alexvolk]

Thank you very much William Kwok! cleared my clog and the printer is working perfectly! Very much appreciate the help!

[fontanares]

Hello, my problem is that the extruder don´t moves the filament. I read the instructions in this page and i change A4988 driver of the extruder 1 by the driver of the extruder 2 (in the driver of the 1 the volts between screw and gnd was 0. In the driver of the 2 was 0,85 v) (I prefer not to change yet).
But now, the extruder motor axis moves forward and rewind the same angle: the filament don´t moves...

Any idea?
Thanks.

[William]

Hi,
What model is your printer?Have you tried all the solutions in this post?

[Jpriest81]

Hi guys

my problem is similar to those listed but with slight differences. My Pro B started to under extrude in a small part of prints so i took the extruder apart to clean the teeth, seeing no improvement i re wrote the firmware and now the stepper motor for the extruder will not run continuously. It stutters now one step forward then one step back regardless of the direction i tell it to move in. I have tested the motor itself and it displays no fault. Please help with my next step i have run out of ideas.

Kind thanks
Jpriest

[William]

Hi guys

my problem is similar to those listed but with slight differences. My Pro B started to under extrude in a small part of prints so i took the extruder apart to clean the teeth, seeing no improvement i re wrote the firmware and now the stepper motor for the extruder will not run continuously. It stutters now one step forward then one step back regardless of the direction i tell it to move in. I have tested the motor itself and it displays no fault. Please help with my next step i have run out of ideas.

Kind thanks
Jpriest

Hi,
Did you upload the right firmware from the official site?
You can take down the fan on extruder to observe the movement when you send a "extrude" command.From "forward then one step back",sounds like it is a clogging...Have you used an ejector?Some more questions:
1.Have you measured the extruder driver's voltage or swapped the driver with another axis?
2.How about extruding by hand now?Did it extrude normally?