I made this to organize the extruder & hot end cables. Included is a wire holder for those with a metal drive feed kit. The tower should be mounted back 22mm from z axis motor. The hold down bolts are 5 x 8 mm. The screw for wire holder is 3 x 16mm. Cable clamps are positioned to top and bottom of tower so as not to rub against bed wires. A few cable ties gently securing extruder & hot end wires after the wire holder finishes things off. If cable clamps seem too tight make sure ribbon cable has not slipped in between clamp and tower. Have fun!