I am close to finishing this Infill Shoulder Plane so I thought I would post some pictures. I still need to make an iron for it as the one I have in it right now was just a temporary one that I hacked from a 1/16" thick plane iron I had laying around.
This is made from mild steel using 3/16" thickness for the sides, and 1/4" for the sole, ramp, bridge, and lever cap. The infill is Honduran Rosewood. The sides are riveted to the sole, ramp, and bridge using 1/8" mild steel pins that pass through from one side to the other and were peened then ground flush. I didn't have the confidence to try dovetailing the sides to the sole.
No precision machining here. I just rough cut the parts with a hacksaw, then shaped on a belt sander strapped upside down to my bench. To flatten mating surfaces, I used sandpaper on a granite tile.
I tried to take quite a few pictures while I made this one, but didn't want to choke the forum with a bunch of photos, but I can post if anyone is interested.
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