The basic double cut goes something like this.
The mortices are first cut with no mockup of the other members, these are gained off the floor or some other such predetermined points.
The tenons are then cut on the post, for example, an inch or less short of their full length.
They are them inserted into the mortice, things are leveled and trued by the means at hand.
A set of dividers are set to a consistent distance, what ever the number the tenon was cut short at. All the posts are scribed to this setting, pulled apart and sawn and chiseled to the scribe, even the wayne, which is a good example of where it would be hard to saw such parts.
They are reinstalled and pricked for the pins, pulled apart enough to bore the pin hole and reassembled and realigned and the foot of the post is marked out and cut. No 2' mark used.
Feel free to correct this, for my clarity and others.
Tim
