Suddenly Problems -G-Code running extruder backwards@hispeed

[travelnaut]

After importing the slic3r settings from the download section I am having intermittent issues with the printer.

When I run the G-code produced by slic3r the machine beeps a few times, moves to begin the first layer and then the extruder runs backwards at a high rate of speed. I turn it off at this point, and sometimes when I rerun the code its fine.. other times its does the same thing.

really scratching my head here.

[kometen]

I have the same problem.
Make sure that your extruders temperature is just above the setting in the gcode before you press RUN.
br
Poul

[enggmaug]

what firmware do you run ?

is there anything special in the GCode ?