Stronger hub for 3D-Workshop's Masterspool design

cults3d

I really love 3D-Workshop's Masterspool design (https://www.thingiverse.com/thing:2823667). It finally gives me what I've been looking for - a great version that uses less filament. This one is definitely a top contender. I also really enjoy the way it clicks together and un-clicks again using the special tool he created. It's like a toy you couldn't get enough of as a kid. I can keep opening and closing it for days! :)\n\nI did find, however, that parts of the original hub that I needed were only one perimeter thick when I sliced and printed it a few times. That proved to be too thin for my handling. \n\nSo I simply bulked these bits up a bit to make them a little stronger.