What did I do wrong?

[printbus]

I'n not speaking for the OP, but my first print with retraction set to 10mm/Sec is promising. If nothing else, the print went a hell of a lot quieter, too. I'll probably keep the setting for that reason alone, at a sacrifice in printing time where a lot of retraction is used.

EDIT: That "quieter" probably means what I was hearing before was the motor skipping. The large gear appeared to be rotating backwards like it should, but it likely wasn't rotating as MUCH as it should.