This is for the heatd bed new cable mod mod: http://rigidtalk.com/wiki/index.php?title=Heated_Bed_-_Replacing_the_connector This is screwed on the forward left baring mount on the bed, and lets you clip the heated bed cable. This way, the strain does not fall on the connector. The clip is ~5.2mm wide, so if your cable is thicker you might need to resize it, but not to large so it grips the cable.Print in ABS, I made mine with 0.2 layer height and 20%, infill, that seems to work.