A little box that you can wind small cables such as USB cables into.

• Needs some supports to print well

Assembly

1. Thread one end of cable out  through lower side hole of box.

2. Clip the shaft into center hole of box, making sure the cable passes through the slot in the shaft. Try to ensure that the midpoint of the cable is under the shaft.

3. Thread the other end of the cable through the spacer.

4. push the space down over the square of the shaft until it stops, ensuring that the holes in the spacer align with the slot in the shaft allowing the cable to smoothly pass through.

5. thread the cable end through the upper side hole in the box. At this point adjust the lengths of the cable sticking out of the box so they are nearly equal 

6. align the square hole on the handle with the square boss on the shaft and press into place.

7. wind the cable into the box

Version 2:

Yeah, that square boss press fit was BS.  So I've done a mild redesign.