|Used a flush-cut saw down to the 1/4" line, referencing off the bed ...|
|... but used a 0.019" thick cereal box shim to ensure not going below the bed line|
|For the final plane, I used a 0.010" thick brass shim|
|Can't see them here, but I also marked 1/4" depth lines on the saw blade so that I wouldn't saw too deep|
|The temporary sawing guide screwed to the bed|
|In this close-up, you can see I positioned the guide so that the thickness of the saw will get me to the cut line|
|Then I sawed to 1/4" depth ...|
|... and I'm left with the abutment recess delineated|
|Then some careful paring gets the side walls down to the sawn lines|
|Here's the completed abutment recess on the final plane.|
The slot for the cap-iron screw has also been drilled and chiseled out.
|Throat widened at front|
|Cutting at an angle - you can see the teeth down deep are not engaged in wood|
Then it's a matter of paring away the waste to get a smooth side wall, angled at top. Finally, I marked and cut to lines for the "eyes", the softened edges that spare tender fingers when clearing the throat of shavings.
|"Eyes" laid out|
|On the prototype, I pared about the same amount on top as on sidewall (basically 45° paring).|
That was a mistake that I corrected on the final plane, cutting more on the sidewall than on the top.
I'll continue next time with the wedge, first cuts and final shaping.