I modified the Yoke so that a locknut or nut can be retained for the M3 screw rather than just screwing into the plastic, there are a couple of versions of the yoke, With and without a filament guide to keep the filament in line.I also use the modification of the bearing that adds the filament guide.The extra width requires the use of some spacers behind the feeder assembly to pack away from the rear face and replace the screws with some slightly longer ones