The front legs are turned round, to fit a hand.
We select front legs from the stock so that the grain is straight and parallel to the length. Front legs begin as 2" x 2" squares — they are usually cut and always marked as pairs.
Front legs (marked front and side) in pairs with the jig that guides the router to notch for the seat.
Everyone likes to see the square become round on the lathe, a lot happens fast. It can be fun, but not casual. We do not use guides or duplicators.
We drive a wedge into a kerf in the tenon.
You can hear it become secure.