Xbox One Extended Controller Knob

pinshape

This one is a bit taller for more control than the one on the left at http://www.thingiverse.com/thing:603882. I added a retainer to keep the knob locked in place. To print, use no support with 0.3mm layer height and 80% infill. To install the retainer, squeeze it oblong to fit over the controller knob before inserting the extension, then press it into the extension to lock it firmly in place. If you want a permanent fix, apply a dab of ABS glue.