Drill press lock and stop nut - GIF

[mwmkravchenko]

I'm wondering if we can't cheapen up this design a bit. What about replacing the drilled nut with a castle nut? That would save a fair bit of fabrication time.

The only kick in the pants will be that at least on my drill press the threaded column is "D" shaped. So it will require some filling in and then filing to shape. Probably a bit of weld on the inside and then some filing. I am not adverse to a scratch build as it is probably the same amount of time in the end.