Threaded Cable Stopper

I got sick of my USB-C cable falling behind the desk and had to do something about it. Came up with this Simple (ish) design

40mm wide and accepts a 5mm cable with a 13mm x 8mm head (typical USB-C cable)

Pass your cable up behind your desk. Thread the inner dome into the outer and align the holes/slits. Feed in your cable (either direction works, honestly), and finish tightening the two parts together… and enjoy

Print with slim supports, for the dome overhang, but stay away from the threads. They are fine without. 

I used 3 walls, but 2 should be fine. 

Adaptive layer lines at the top of each dome helps present a smoother end product, but is optional