The crossrails are now fitted within the side walls and its best to establish the shoulder lines for the stub tenons whilst the clock is assembled. The distance between the side pieces determines the shoulder lines of the tenons and so we must subsequently add a further 5/8” to the overall length. Making this second clock for the blog, I chose to make one of the stub tenons and then place the shoulder against the one side and mark the second shoulder from the opposite side, which leaves the 5/16” I need for the stub tenon.
It’s important that these shoulder lines directly correspond to the insides of the walls which are also the distance between the housing dadoes.
…and onto the edges too.
…or I can also use the saw to saw the cheeks.
I mark the opposite shoulder line by placing the first tenon shoulder inside the first wall. With the knife, I mark the exact position with a small nick on the corner and then follow the same procedure as before for making the tenon.