I needed a way to wrap up a lot of rope for a bike lift. The ceiling was so high that I ended up with way more rope than the little included cleat could handle. So I threw together a quick split design.
Print two. Separate to the desired width. Screw in (to a stud or something else that's quite solid). Wrap yer rope. Yee haw!
Print with one of the large sides facing down. Will be strongest and require no supports.
Note that using this orientation, it will split down the middle if you use a sloped-head wood screw, as the head of the screw will act as a wedge. If you do use a sloped-head screw, be sure to add a washer. I used #8 cabinet screws with standard M4 washers.