Thanks for this upgrade !
It worked on my Alfawise U30, but your holes didn't match mine, so it is kept in place by pressure from the belt, and the body toutched a part of the printer so I cut it (with a knife)
Not perfect but it wasn't designed for my machine so I can't complain ^^
Also I had to overscale the knob and the body because the screw was stuck inside the knob on my first attempt
I used only OEM nuts, screws and bearings and with some adjustments it worked
Thanks again, my print quality is slightly improved