Stepcraft HF500 spindle cable holder with dovetail slide

I wanted to be able to remove the spindle without cutting any cable ties, but still keep the cable and air hose out of the way of the machine's motion.

To be printed in PETG (PLA could deform if the stepper gets hot) standing vertically on the back side. The tolerances are reasonably tight, but it should slide freely. My printer probably has some inacuracies along the Z axis, because if I try to push the top part in flipped front to back, the fit is much tighter, even tough the slide should be symmetrical.