bon jeu

A more accurate way is a notch in a piece of wood and a isnifhing nail on the other end, just tap in the small nail in the centre of where you want the circle and the notch where you place the tip of the carpenters pencil . also a jig similer with a more robust nail and a router at the other end.

Dude, right on there brohetr.

Filanly! This is just what I was looking for.

That's not just logic. That's raelly sensible.