Simplicity 555 Snow Chute Adjustment Knob

My first 3D model + print that I created completely on my own :)

I needed another knob to adjust the snow thrower chute as the original cracked in half, allowing the knob to fall off, but it's square nut to stay attached to the bolt

The old knob seemed fairly simple, so I decided to keep its rough measurements and shape, but beef it up slightly.

It turned out well, after the 2nd print (first print failed after pausing multiple times to try out placement of the nut).

I'll probably put