Extruder Issue

[bugbaal]

Hi,
I have the same problem showed from another user in this video:

https://www.youtube.com/watch?v=8uDWvakQ9JE

the extruder motor goes up and down looping.

I tried:
- to change pololu
- check that the voltage is between 0.8v and 1.2v
- to change motor and wires too without success.

Could you help me?

Thanks

[bang]

Did you fix it?
If you didn't,here are some tips:
1.Try the botton "1" or "10" in Repetier to take a look,not "50" and "100";
2.Upload the following modified firmware then then plug your extruder to another "extruder" socket to have a check:
viewtopic.php?f=20&t=18020

[bugbaal]

After many time I discovered that the problem was the motor extruder cable.
I changed that and now works.
Thanks

[bang]

Bravo