To build the base for my next asa-no-ha pattern I’m using Alaskan Yellow Cedar. I acquired a few three foot boards, about 3″ wide and 3/4″ thick which I ran through the power planer to just over 5/16″ thick. From there I ripped several 1/4″ wide strips to use for the pattern.
For the jagumi, I cross-cut six pieces, each approximately 5 1/4″ long. I then used a block plane to get them all exactly to the same depth/thickness.
As you can see, I did not saw all the way down to the horizontal layout line. That was not intentional, I was being cautious so as to not over-cut and I was more focused on cutting straight lines.
So I went back to each cut line and very carefully cut down to the layout line. To not do this would ensure that when removing the waste, there would be tear-out which would be obvious in the final piece.
The jagumi complete, the next step will be to cut, shape, and insert the four diagonal cross pieces. This will further divide the four squares into eight triangles.