I have the exact same problem.
I have tried to exchange the motor controller - it works fine.
Moving the extruder motor to the x-axis controller allows me to move it just fine.
It is not a matter of resistance or power - the motor turns fine when pushing it by hand - and I run it w/o any filament just to see it move.
When I try to step the extruder from Cura and the hot end is cold I DO get the "hot end cold" error.
When I heat the hot end and try to step from Cura I do not get any errors, but the extruder does not move.
There simply seems to be some flaw within the software. The extruder does not receive any signal.
I am running newest CURA and have upgraded firmware.
Other than this, the ultimaker prints fine. It takes a some practice and a huge amount of patience to crank the extruder by hand!!
So - any ideas?
So you have E commands in the resulting gcode? I had an issue before where these were missing and had to check the "dimension" > "activate dimension" option in the applied replicatorG profile.
Can you get the motor running when you use the control screen in replicatorG? If that fails I would say it's a wiring/hardware issue for sure.
Link to post
Share on other sites