Stepper mounted extruder cable harness strain relief

thingiverse

I created this to work seamlessly with Marty Rice's innovative Direct Drive Extruder, which I have installed on my second P3Steel, but it can likely be used for many other extruder setups. Simple fact is, there are several electrical wires that emerge from the extruder, go around the top of the printer and then down to the RAMPS electronics at the back of the printer. All this movement repeats together with the X-carriage, making common sense dictate that a strain relief is necessary to prevent wiring fatigue (breakages, short-circuits) and the typical disastrous consequences. It also makes things look slightly less cluttered. I designed this strain relief so that it is extremely easy to install even after everything is in place. It requires one long and two short nylon ties, with the long one going through the strain relief part itself and around the stepper, and the two shorter ones tightened around the cable harness. Update 26/01/2015: I uploaded Version 2 of this part, which differs from the original by having a longer arm that bends outwards, providing extra clearance to avoid interfering with the X-axis idler end assembly when the X-carriage reaches the edge of the heated bed. The code is also more modular. OpenSCAD sources are included so both designs can be further remixed. Instructions Printed in PLA with 35% infill. The short overhangs are at 45 degrees and should not cause any issues.