Locknut Knob for a threaded rod

thingiverse

This is another take on an hand knob that would fit the Open Press design, this one is, however, intended for use on a threaded rod (as opposed to a hex head screw). It mounts using jam nuts - one positively locked within the knob and a second one jammed underneath the knob to fix it to the rod. It works a charm. It will of course work for any application where you want to put a knob on an M5 rod.