Stepper mounted extruder cable harness strain relief

I designed this for use with Marty Rice's awesome Direct Drive Extruder which I have installed on my 2nd P3Steel, but it can probably be used for many other extruder setups. Simple fact is, there is a thick bunch of electrical wires that come out of the extruder, go around the top of the printer and then down to the RAMPS electronics at the back of the printer. All this moves repeatedly left and right together with the X-carriage and common sense dictates that a strain relief is required to avo