by cvoinescu » Sun Apr 14, 2013 7:58 pm
But there isn't a problem with the QU-BD at all. Simply replacing the gear with a MK7 gear, the set screw with Bart's bearing design, and simply cutting and drilling out the hot-end on your lathe as described, or inexpensively replacing it with a J-Head, will fix the few minor details that the QU-BD team may not have got to everyone's complete satisfaction. It's a mater of taste, really.