Harness Strain Relief for Nema Stepper

Made this part for my Makerfarm Prusa i3 build, based on similar parts, but made to be bullet proof. Used to relieve stress on the wire harnesses; I used one on the x-carriage stepper and one on the extruder stepper. Can be used in many applications where NEMA 17 steppers are involved.

They have grooves to allow the use of zip-ties to secure them; two grooves to secure the harness with small zip ties, and tabs to retain a large zip tie, which is fastened around the motor clip to keep it secur