Anet A8 Thumbwheel

I downloaded a thumbwheel design off thingiverse, however i found out after a few trials, that they hit the rear frame openings, so decided to try and design my own custom version of what I'd like on my Anet A8 , using Fusion 360, and a lot of tutorials :D , I got to this point ,and hopefully it will print fine,when i can get my printer back up and running, due to the heat cartridge failing, if anyone prints before i can please let me know how it goes, it should be 15mm across, and should fit the wing/butterfly nut that comes with the Anet A8 kit