To make the rear infill, I sawed out a piece of Bubinga and flattened one side that would serve as a reference for the lay out. This was the lower side of the infill.
Next one side was squared up and finally the last side was made parallel and square too.
Following this I marked out a 50 degrees angle on the forward part of the infill, which will eventually become the frog or bedding for the blade.
If I had had a protractor out here I would probably have used it, but I dont. So with the help of a bit of math and a tangent function I was able to do the job anyway.
After marking up I sawed close to the line with a hacksaw. The surface was then sanded completely flat going through the grits with the sand paper placed on a flat piece of thick aluminum plate.
The block of wood was placed inside the base of the plane and the contours of the side were marked on the wood with a pencil.
The block was removed and a hacksaw was again used to saw near the lines to remove the bulk of the waste.
After sawing, the block went back in, and the assembly was clamped in the vice and the wood was brought down to be flush with the sides using files and sandpaper.
Just like with the front tote, I left the rear infill a bit long. This will be trimmed of later.
Making a rear tote is the next part of the project.
Rear infill and front tote.
Rear infill seen from above.