About this 3D model
Update: I've had some problems with homing the Z axis as the whole Z carriage got stuck before hitting the endstop and unscrewed the bolts underneath it. Version 2 has an open bottom to let the cable hang out further up and is a little tighter so you don't have to use cable ties to keep it secured. The orange part in the pictures is version 2 and the blue is version 1. A very simple cable holder for the RoBo3D. Use a M3 screw and bolt to hold it in place behind the X axis motor. Keep in mind that you might have to drill open the hole on behind the motor.