Knob for 7/16 Nut

thingiverse

I used the pause at layer function in Cura to stop the print and add the nut to the part then resume printing. You will need to clean up the bridge layer over the nut by either running a knife around the hole or simply threading a bolt from the other side to break through it. The knob measured Ø2.00" at the large end, Ø1.25" at the smaller end, and 0.75" overall height.