I created a binding winder (https://www.thingiverse.com/thing:6751831), this one here is an improved version with a shorter spindle, slots for mini-clamps (to affix it to the ironing board) and a winder handle. It is a huge improvement on the original. The handle of my winder recently broke. So I designed a better one, and I suggest that the handle is printed at 100%. The latest handle is listed as V11. When you are winding the binding on, you need to start by securing the end of the binding to the reel with a short piece of sticky tape. The printer used was actually the Ender 3 V3 SE.